Torque Converter Vibration Under Load

Torque Converter Clutch. In a GM vehicle, a torque converter problem (in a 4 speed Turbohydromatic with o/d) the vibration occurred at abut 45 to 50 UNDER LOAD, like your problem. may experience a torque converter clutch shudderPLEASE HAVE THE VEHICLE IDENTIFICATION or vibration. I also seen where people recommended using tranny dr insta shudder fix. The vibration definately seems speed related & only under load. A key factor is this: the RPMs do not change the vibration sound, only change in speed. continually engaging and disengaging). I have been having a vibration from under the truck - finally pinpointed when it happens. When you're in gear, the RPMs change because the different load and drivetrain mass changes your fundamental frequency. * A bad injector, making one or more cylinders either not fire or not fire with the same force as the others. Signatures:. This is often a sign of a bad governor gear, or a TV cable that is not returning back when you let off of the throttle. To fix, the torque converter has to be replaced. The result is that the engine vibration at those speeds corresponds with the stronger vibration that I feel while the engine is under load. (3) There will be no more worries about overheating the transmission in heavy traffic or hot weather pulling a heavy load due to the fluid shear of a poorly designed torque converter. Install the front wheel opening extension pad LH, engine under covers LH and front fender apron seal LH. Check for fluid leaks. Only seems to occur when cruising between 45-55 mph. Tried swapping tires with new spare and there was no change. The torque converter shields the driveline from sudden torque shocks and vibration. A new replacement torque converter costs between $100 and $400, depending on the vehicle model and converter type. The torque converter has been replaced, the computer flashed numerous times, and all TSB's performed including recall G25. Now it is doing it with the heater on a/c off and in park or foot on brake. Transmission fluid dripping from bottom of the vehicle. 75-inch-diameter torque converter. In 4th gear, overdrive, under load the transmission will shudder. I’ve checked the driveshaft, and it only has a small amount. Stopped off at a local transmission shop and the tech drove it for a couple miles and said he doesn't think it's the transmission, but more of a mis-firing. Original owner. The number 1 cause of vibration is failure to prepare the crankshaft for installation. Precision of New Hampton is the largest privately -held torque converter remanufacturer in the world. Re: "Rumble Strip" Vibration Sep 30 2014, 5:01pm After reading the first thing that came to mind was Torque Converter, my brothers Focus does this same thing only the convert cost more then his car is worth so he's just driving it into the ground…. Designed with heavy haulers in mind, our torque converters excel in their capacity to remain trouble free under high load applications like towing heavy trailers or long distance. As it spins, fluid is flung to the outside, much as the spin cycle of a washing machine flings water and clothes to the outside of the wash tub. Under light acceleration your 2012-2014 Camry may shudder as the torque converter locks up. During the rice-threshing process, straws always attached to a threshing cylinder and induced vibration and modal variation. torque converter 2212502202 I find the torque converter the most likely suspect in my case, as well. Attainable initial starting torque values range from 40% of normal running load minimum, up to a maximum initial starting torque value that equals the full breakdown torque of the motor. I did initially because I assumed it was using less torque than actual causing the torque converter to lock/unlock. " Yeah the TC is just a hydraulic coupling, but the TCC is a clutch, and slipping clutches are bad. Under high load, low RPM situations, such as accelerating in OD (torque converter locked up), there is a vibration, I can feel it through the floor and even up through the steering wheel. When subjected to this vibration, the vehicle experiences a shudder type disturbance, generally occurring less than 25 mph. You can replicate this at any speed on the highway; Keep your foot into it until you know it's locked in 5th under load, lift off to coast , reapply slight pressure to the throttle and watch your RPMs blip for 3-4 seconds until the lock re-engages. 2006 Acura TL vibration under specific conditions. I notice that it is most noticeable when the engine is under load. I am not adverse to changing it myself, but I have never heard of a torque converter causing a rough running engine. Gooberboy. Strange thing is it seems to come and go,thought it was gone after the cats were replaced but as i said it comes and goes. Does anyone have any experience with problems of shimmying or vibrations at speeds around 60 to 75 Km per Hour. 3TD Auto that has a "can of marbles" type sound at 1600-1800rpm under load. I originally thought driveline, so I sent it out for new u-joints and center bearing. I recently bought an international 4700 with 7. — Unsteady interaction phenomena created by the influence of the blade spacing have been reported in earlier experiments and CFD. I searched to forum but couldnt find anything. from precision medical instruments to high-performance robotic solutions, FUTEK products are designed to work in the most demanding environments - even on Mars. At that time, car needed a timbing belt, 2 axels (worn CV's), ABS unit and valve cover/camshaft seals. However, vibration problems can happen when these torque converters go bad. All 340's up to 72 were internally balanced. Transmission fluid dripping from bottom of the vehicle. The labor cost to replace the torque converter is between $200 and $1000, depending on the vehicle model and the workshop that does the work for you. One of the techs took a ride with me and as we were pulling out I was explaining what happens. Determine the correct tightening torque by the completion of tests. Vehicle shuddering or vibrating under load. I also checked if torque converter of flex plate loose. A standardized test procedure for the stall operating condition was developed to transition each torque converter tested from a noncavitating to cavitating condition. 9 Comparison of p-Values for Bolt Preload 5. I suspect that it's there when driving around town but not as noticeable at slower speeds and/or starts and stops. Still have the vibration. And he told me that is a terriable solution because it will ruin rubber seals an create larger problems over times. The Torque Converter The torque converter converts hydraulic pressure within the transmission to mechanical torque, which drives the drive shafts and ultimately, the wheels. replacing the broken trans mount definitely improved the severity of the vibration, but (as i was warned by everyone!) there is still a fairly pronounced vibration under power. Rebuilt waterpump and power steering pump. Mostly noticeable while driving under load at specific rpm. Above or below those speeds and it's fine. Its most prevalent while hauling my camp trailer (~4500lbs). Tried unbolting the torque converter and running it and the vibes are still there. - - - Updated - - - Could a faulty torque converter cause a vibration under heavy load? If you spin the drive train in any gear with the rear wheels in the air, there is no vibration. How a torque converter works Most of the modern vehicles are equipped with internal combustion engines (ICE). Discussion in 'General Discussions' started by SFA1500, May 29 You will usually hear a clank when you hit the accelerator after coasting. I have a 94 ford explorer. A torque converter is a type of fluid coupling which transfers rotating power from a prime mover, like an internal combustion engine, to a rotating driven load. Google discovery 3 torque convertor vibration issues, cheap fix that works is 2 tubes of Dr Tranny from ebay. vibration damping through high levels of slippage and over wide speed ranges is no longer appropriate. According to my dealer, do the flush and wait 200 miles, if it's still there install a new torque converter (still waiting on mine), if it's still there then a new transmission. The level of vibration is. I was directly under the TC and it was noisy right above me. Dealer thought it was a seal. The conclusion people are coming to is that the torque converter is constanly locking and unlocking itself over and over again because it can't decide. Torque = force x distance 30 kg is a mass, so you have to convert to a force via F=ma The 30 kg is located the radius away from the center. Torque Converters in many levels for 700R4, 4L60E, 4L80E, 6L80E, 46RE, 47RE, 48RE, AOD & many others. Show Full Signature 2015 T250 MR cargo w/windows, 3. I am also having a similar situation. P/n 2212502202 in my case, $1125 plus 15% shipping at parts. If vibration or shudder occurs only in 1st or 2nd gear, or when brakesTown Car - Base Only 1995-97 F8VZ-7K177-AA. My Plymouth has a 318 with Torqueflite and double WCFB's. The manual says "some models" have a lockup torque converter with an electronic clutch that kicks in at 40 mph under light load…which is the exact conditn where I started hearing/feeling the vibe rumble. This reduces fuel consumption and minimises noise development. I picked up the van and was excited the have the problem solved at no. Because I have the same vibration before and after the engine swap, and a brand-new driveshaft, I'm thinking the vibration has to be because of the rear end but I'm not sure why. Parts Information Part Number Description QTY 24279497 Torque Converter: 6. Most likely it's not from t. Torque Converter Clutch. Department of Mechanical Engineering-Engineering Mechanics. Motor is a refreshed pontiac 400. The TS200 and TS300 Test Stands from Great Lakes Power provide a turnkey solution to testing automatic, powershift, marine, and oil field transmissions, torque converters and any other engine flywheel mounted products. Additionally, to confirm the responses to the changes of input torque, the amplitude of the steady torque is changed. Now that you know what a torque converter is; let’s move on with understanding lock up torque converters. When a remarkable load fluctuation occurs, the inverter provides the torque response in the class-top level. 2L engine and 4wd with 252,000 miles. The torque converter is locking in at too low of an RPM and therefore trasferring the uneven firing of the engine pistons into a vibration that can be felt in the cab. Re: bad vibration when accelerating at highway speeds September 14th, 2015, 4:31 am I'm just spitting into the wind here but that sounds like a torque converter shuddering. The throttle needle and car shakes and car will cut off and stall to turn on again. Because I have the same vibration before and after the engine swap, and a brand-new driveshaft, I'm thinking the vibration has to be because of the rear end but I'm not sure why. The truck was under a platinum TEC policy on it and at 95000 miles the rep agreed to cover the entire tranny. B&M® specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluids. Torque converter shudder and diagnosis Many people describe this feeling as running over a rough spot in the road. It is understood that the shuddering/vibration is caused by the torque converter clutch (TCC) solenoid not engaging properly (i. $3,000 later…I still have the vibration like originally had in the seat. The whole car shakes violently under the load and rarely gears down for more power. The most recently reported issues are listed below. The following calculators compute the various torque aspects of motors. As horsepower continues to climb it becomes much harder for the torque converter to fully lock under heavy load due to some limitations within the factory TCM programming. Sometimes its bad enough to rattle the dash. What a Bad Torque Converter in a TH400 sounds like. TCC is the transmission converter clutch. I do not think its the transmission or torque converter causing this issue. I have replaced my front axle u-joints, ball joints and varified that my rear end did not have too much play. Go on to the next nut and bolt pair. How does a lock-up torque converter work, exactly? 5. I finally took it to the dealer to see what is up. Precision of New Hampton is the largest privately -held torque converter remanufacturer in the world. 2018 DEUTZ FAHR 5120 Te koop in Tulsa, Oklahoma Te Koop Bij TractorHouse. I believe it is the original. Then add 8 quarts of fluid to the unit, run it for 30 seconds, then shut the engine off. A judder from the torque converter lock-up clutch may be felt while driving between 20 and 60mph. The best part is it was covered under warranty. I told the tech about vibration and results of shaft swap and he said it was my torque converter slipping due to dirty fluid. A new replacement torque converter costs between $100 and $400, depending on the vehicle model and converter type. The conditions under which the vibration occurs can be divided into four different categories: engine speed related, vehicle speed related, engine load related or random vibrations. The vibration starts mild, and can get worse. i have a 2004 dodge ram 1500 with automatic and hemi engine. /h A Second order driveshaft vibration will cause two shakes. The torque converter needs to be replaced, which requires between $300-$500 for a replacement, lockup, 4L80E converter. This vibration sounds like it's coming from behind the driver's console. • To eliminate the possibility of front seal leaks, vibration, and premature bushing wear, all torque converters are tested for leaks, lock-up, concentricity, and balance. Transmission fluid dripping from bottom of the vehicle. A torque converter shudder is a brief shake or shudder in the vehicle when internal clutches apply inside the torque converter. Torque Converter Clutch Shudder. When it happens the tach and speedometer needles both move up and down a little in unison (about 100 RPMS). I have a vibration at 1000-1500 rpm, 30-45 mph that happens under low load and when it happens the rpms dip a couple hundred. It's vibrating when it's on the verge of lockup (moderate speeds, low rpm and light throttle position. Stops when brake or gas tapped slightly. Also, replacement torque converters, of the shelf or those supplied with remanufactured transmissions, may or may not have the drain. Repair and Replace Torque Converter Clutch and Reprogram ECM (PCM) Engine With the vehicle at operating temperature, confirm the condition described in the Introduction. In this case, we’d expect the 234-degree duration to draw down the stall by 200 rpm, and the lobe separation will further weaken the torque at idle, dropping the stall an additional 200 rpm. He knew the bulletin number by heart and new the procedure. When under load, at max vibration, there is another higher frequency “rattle” that comes it that sounds like it’s coming from under the dash somewhere, it seems secondary. A torque converter is the fluid coupling between an engine and transmission that allows the engine to idle at low speed without engaging the transmission. If it happens when you take your foot off the throttle and you get a sudden burst of vibration from the back and then it kinda settles down but is still there until you get to 70 or 80, its typically uni joints. load curve engine torque Figure 3: Converter stall torque in relation to the engine torque curve All converters produce large amounts of slip at low speed and under extreme load. I just bought this 04 2wd with 90k miles. Anyone experience a shudder in overdrive? One mechanic thinks changing the torque-converter would solve this issue. With my 06 Dodge Ram 3500 4x4 and 48RE transmission (Cummins diesel power), I notice when pulling and away and accelerating from a dead stop, like a stop sign, I will get the slightest vibration in the transmission. This is the most common automatic option, and can be found in the hugely popular Mazda range, as well as the more high-end Japanese brand, Lexus. Its most prevalent while hauling my camp trailer (~4500lbs). This also seems to wear out the lower control arms prematurely (last one last maybe a year). I don't see why thou , the way it is now the torque converter is still slipping when the box hooks another gear. If you press the brake pedal lightly or shift out of overdrive the shudder will quit. Honda advises to rplace transmission at $3000 cost. The torque converter is the assembly that passes power from the engine to the transmission. Any ideas??. then it goes away. 2007 CUBEX QXW1210 For Sale In Monroe, North Carolina para la venta At MarketBook. when the truck is under a slight load (for example from a dead stop up a slight incline, or from a dead stop when making a sharp turn), and i accelerate very lightly, at about 3 mph i get a real quick, loud vibration. A torque converter consists of three major internal components: the pump, turbine, and stator, as well as transmission fluid. In 3rd or 4th gear under a load like when going up a decent hill, I can feel some shuddering or slipping of the torque converter. I think they are trying to ge tthe E to make the vibration while on a lift and taking some data from the CPU and sending it off. They ended up replacing the torque converter. the torque converter keeps going bad, i mean i replaced. Still a slight vibration under heavy load. Our load cell offering includes competitively priced general purpose and fatigue rated load cells, which come in a variety of mechanical configurations such as single or dual bridge, low profile, canister, rod-end, and s-beam load cells — all of which provide excellent accuracy at an affordable price. It happens when I turn it on. he has the same just a 00', both around 120,000. Changed the shafts and it went away but still had very slight vibration on take off. It does feel like low line pressure / torque converter slip / clutch pack slip at LOW or MILD throttle input and low engine RPM only. Torque Converter Clutch. He knew the bulletin number by heart and new the procedure. According to these reports, many drivers have had to flush their transmissions and, in some cases, replace their torque converters. As fluid is flung to the outside, a vacuum is created that draws more fluid in at the center. Modern torque converters up to 65,000 kW have been designed and are widely in operation. A torque converter noise will increase under this load. I don't get any shudder or surging though. The best part is it was covered under warranty. He is $190 to change and fluids, and quoted me $1100 to change the torque converter. The lockup torque converter, used in OBD-II equipped vehicles, allows the engine to lock into the transmission input shaft under certain conditions. He has a 2016 Same vehicle & is doing the same. Stops when brake or gas tapped slightly. The torque converter could be the least understood part of the drivetrain — small wonder it’s so often ignored. It was happening more consistently in 4wd, however, would also do it in 2wd going uphill. Torque: ? ft. offers both slip ring and rotary transformer rotating torque sensors. The following calculators compute the various torque aspects of motors. Driveshaft balance issues can generally be felt at vehicle speeds over 30mi. I lived with mine for a year and pursued all available channels for a fix. The vibration is present whether in neutral or park. The converter pilot is broken, damaged, or fits poorly into the crankshaft. I don’t know if the shudder an vibration go hand in hand or not. A Torque converter ain't really doing too much untill you're at highway speeds of above about 42mph. The 2018 Chevrolet Colorado has 33 problems reported for shudder, vibration. It is going to vibrate. In most cases, this means that you have broken pump gears due to a lack of fluid. Once again, the more torque your engine makes, the higher your torque converter will stall. A torque converter noise will increase under this load. At least that’s what the tech told me. The vibration or shuddering is most noticeable at highway/freeway speeds. While under a load my has a heavy vibration. There is a slight increase in vibration, which might be why it is commanded to slip a little. Vibration when accelerating Discussion in 'LR3' started by rsm, Aug 28, 2006. It could be the torque converter, since that's on the front side of the transmission and will still be rotating in park/neutral. Replace the torque converter. The cost of getting your torque converter repaired will actually be more than just replacing the converter. If vibration occurs after installation, mark converter to flex plate and rotate the converter one bolt hole at a time. The amount an engine is allowed to overrev before it's torque is reduced for a natural redline. I would get a vibration under heavy load. I finally took it to the dealer to see what is up. Let’s explain this a bit better. Can't imagine the assembly line letting it go with a crank balance issue. This leads me to believe it's not a harmonic. Lower the vehicle. If you press the brake pedal lightly or shift out of overdrive the shudder will quit. I was told by a Mercedes mechanic that it was a bad universal joint. They can also check the spark plug to see if it is breaking down under a load. The stall speed is the rpm range where the torque converter begins to transfer power to the transmission. These converters prove to be a boon when it comes to driving a heavy vehicle down the road. They don't "increase" noticeably. A component rotating the same speed as the driveshaft that is out-of-round. Then I step very slightly on the gas to. And he told me that is a terriable solution because it will ruin rubber seals an create larger problems over times. Finally the backordered torque converter came in and the van was put back together. 9 Comparison of p-Values for Bolt Preload 5. 2007 CUBEX QXW1210 For Sale In Monroe, North Carolina para la venta At MarketBook. The objective of this paper is to present a generalized integration summary for torque converter clutches (TCC) to enable aggressive apply at high engine torques and engine speeds below 1500 rpm without adversely affecting noise and vibration (N&V). I am also having a similar situation. E46 vibration - in gear and at a complete stop Results 1 to 6 of 6 Discuss E46 vibration - in gear and at a complete stop in the alt. The RPM's drop and the engine vibrates more. I say normal because my 95k mile 2004 pilot vibrated under light load and low rpm the entire time I owned it (from new for 7 years. Although this arrangement sacrificed some of the smoothness that was the main rationale for early automotive torque converter transmissions, it made Ultramatic more efficient than the early Dynaflow, at least. Its a steady knocking sounds and is pretty loud. and pick up heat (operating temperature. There are many different possible causes for a driveline vibration. It only happens when the car is accelerating from a stop and the noise and vibration stops at 10 miles per hour. Sound Pressure Level. Problem: You can be driving down the road with your foot off the gas at any speed and no vibration. I keep getting a vibration, almost feels like hitting a 'rumble strip' on the highway. Without slip it cannot transmit torque. The key to diagnosing TCC shudder is to note when it happens and under what conditions. When subjected to this vibration, the vehicle experiences a shudder type disturbance, generally occurring less than 25 mph. Re: 2003 XC70 - Vibration under Load Post by chrism » 27 Apr 2016, 21:14 If I was ever in a situation where my car had aftermarket axles and one went bad, I'd consider going to the PnP and pulling an OE axle to send in for rebuild. The best part is it was covered under warranty. Read More. With reference to FIGS. Bad vibration. Have had many other repairs ($3000) in 6 years also , making this CRV the most expensive repair cost vehicle ever owned in 40 years of driving. The general thought was that it had to do with the torque converter. Well my jeep has been shifting weird for a while now. aug 17, 2010 - phoenix, az - power train 2004 acura mdx torque converter issue. 2011 Subaru Outback. Vibration when torque converter locks up When the torque covnerter locks in at 80-100km/h, i get a real bad vibration through the entire car. Unfortunately the OEM Torque Converter is a weak point in an otherwise very reliable Transmission, these Converters have very quickly built a reputation. in park and reving the engine through its operating range? Here's why I ask: My 72 Chevelle (350 V8, THM350 transmission) has developed a seat of the pants vibration at two places, between 1150 and 1250 rpm and between 1750 and 1850 rpm. Discussion Starter • #1 • Jul 8, 2011. - - - Updated - - - Could a faulty torque converter cause a vibration under heavy load? If you spin the drive train in any gear with the rear wheels in the air, there is no vibration. The current owner got it non-running from a body shop owner who painted it but did not drive. Flywheel Dynamic Balancer, Vertical Balance Machine, Single Plane Balance Machine manufacturer / supplier in China, offering Jp Jianping Torque Converter Pump Impeller Flywheel Dynamic Balancer, Good Quality Balancing Machine, Rotor Balance Machine with Belt Drive and so on. load curve engine torque Figure 3: Converter stall torque in relation to the engine torque curve All converters produce large amounts of slip at low speed and under extreme load. The vibration or shuddering is most noticeable at highway/freeway speeds. Previousely I didn't feel any vibration at speeds other than 20mph; then sometime between 1 and 2 I started to feel vibration while applying torque at higher speeds (60-70, etc) and it got a bit less wild at 20mph. They were designed for the loads seen when cruising down the road at 65 mph, not full load acceleration. Now it is doing it with the heater on a/c off and in park or foot on brake. Mine started doing it today under similar circumstances as others; 45-55 mph under load wile going up a long hill. Engine code reads bad torque converter :( So, i just told them to rebuild the tranny too. (Page 1 of 2). However, if the load is heavy even while the vehicle is running at a medium or high speed, the torque converter may operate in the converter range. doesnt do it on normal (harder) acceleration nor at higher speeds. The cost of getting your torque converter repaired will actually be more than just replacing the converter. Ford sold me a small tube of, Motorcraft additive friction modifier, which did not work, or maybe I have not given it sufficient time. Stops when brake or gas tapped slightly. During machine operation under low drawbar loads, the stator is permitted to rotate to achieve peak efficiency. Load detection Lower spreader Load detection link All rated crane load data are stored in mode cartridges. nl Het optionele vergrendelsysteem voor de koppelomvormer zorgt voor een ongeëvenaard rendement en een onklopbare brandstofefficiëntie bij laad- en. When under a load, you feel the vibration. 6L Duramax features a multi-disc design that provides you with a low stall that is 300-400 RPM lower than stock. For these devices, the stall torque is greater than or equal to the maximum output torque for a given input speed. He replaced and at the same time, replaced the timing belt and water pump. Re: "Rumble Strip" Vibration Sep 30 2014, 5:01pm After reading the first thing that came to mind was Torque Converter, my brothers Focus does this same thing only the convert cost more then his car is worth so he's just driving it into the ground…. It gets worse as engine load increases and will eventually be felt in the floorboards on the steepest of hills. This dissertation, “Torque Converter Turbine Noise and Cavitation Noise over Varying Speed Ratio,” is hereby approved in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY IN MECHANICAL ENGINEERING-ENGINEERING MECHANICS. fluid damper and now the vibration is worse. 3 GMC Sierra - Duration: 1:36. That's when the stock torque converter locks in 4th and 5th gears. The problem is typically diagnosed as a bad torque converter. -- 6HP26 torque converter (sectioned diagram) without / with torsional vibration damper 12 -- Converter lock-up clutch (2 GWK + torsional vibration damper) 14 * Hydraulic flow in converter (lock. I have been wrestling with my '58 Belvedere vibration problem for some time without any success. The forces are also torque sensitive, which means the disturbance, will be highest under wide open throttle. Honda advises to rplace transmission at $3000 cost. Ignition issue- one cylinder misfiring- any CEL or codes ? 2. It generally occurs at part throttle and light acceleration, between 15 and 50 miles per hour, just before the shift to one of the top gears where the converter reaches "lock-up. Technician B says the torque converter clutch plate is splined to the turbine shaft, and the plate locks the turbine to the converter when the piston is applied. dull, tapping knock, like a piece of wood is hitting metal in the 1,200-2,000 rpm range. No lights came on during this 3 hour trip and the torque converter was locking and unlocking the entire way. well I would look at a few things that may be possible: 1. The number 1 cause of vibration is failure to prepare the crankshaft for installation. p for Zero Friction Under. I has a complaint with my truck ( 93 Ford F150 4. Verify concern. 182,000 miles. Is there a brief shudder intermittently present while driving under a light load between 25 – 50 mph? Typically, the condition will be most noticeable prior to an upshift. He scoffed when i said that but then he drove the car and he could replicate vibration on. I took delivery of a 2016 Sierra Denali (5. A motor’s lifespan can further be extended with the integrated use of condition monitoring technologies such as vibration, ultrasound and thermography. Our range of torque calibrators and testers also check manual and power screwdrivers, digital power tools, power drivers, and any other torque tool. A judder from the torque converter lock-up clutch may be felt while driving between 20 and 60mph. Discussion in 'General Discussions' started by SFA1500, May 29 You will usually hear a clank when you hit the accelerator after coasting. Show Full Signature Black 2006 LBZ 2500HD 4x4 CCSB. This is actually a known issue in MDX models and the recommended repair is to replace the torque converter and install a software update for the power train control module. Dealer thought it was a seal. The motor current under load is the sum of the no-load current and the current resulting from the load. 9, balanced, with the matching damper and weighted flexplate, 904 transmission with neutral torque converter. All other engines used an 11. For torque converters, the stator is located at the center, and has a fin design that reverses the direction of the fluid from the turbine back to the pump again. Symptoms consist of shudder, vibration, delaged engagement in first and or reverse, exhaust droan, surging under light load, premature failure of engine mounts, soft brake pedal feel at stops, Honda uses a variable apply torque converter. A proper inspection. 75-inch-diameter torque converter. Signatures:. But BDs torque converter was specifically designed to handle the kind of punishment you dish out. Any ideas is appreciated. Ford F-150 - 1997-2003 :: 1999 - Torque Converter Vibrates - Engine Misfiring? I have a '99 F150 w/ the 5. Circuit Building, DC Motors, DC. If you have a lot of angle in your driveshaft, there will be more wear on them than otherwise. Drive the vehicle in 6th gear, V8 mode, with a transmission input speed of 1,000–1,500 rpms (approximately 64-89. Idle is flawless as is performance after shudder stops. A torque converter shudder is a brief shake or shudder in the vehicle when internal clutches apply inside the torque converter. It doe not occur while towing or under load or while manually holding the gear down or TOW / HAUL mode. I took delivery of a 2016 Sierra Denali (5. 7 engine with 68,000 miles has developed a shudder/vibration between 45-60 mph. If the engine seems to bog down under load that would be an indication of a restricted exhaust. Perhaps someone can explain to me exactly what torque converter (TC) shudder is. Performance testing leads to reduced operating costs due to rebuild errors and the possibility of critical failures in the field. The problem is that the engine and transmission are vibrating when engine runs under load - for example when transmission upshifts (any gear) or when driving uphill. The torque converter shields the driveline from sudden torque shocks and vibration. Won't know about the hole and torque converter nose until I drop the tranni. I followed the advice on this forum and changed the transmission fluid and it fixed the problem. Took me along time to get to the answer which is a pretty simple inexpensive fix. Hard vibration starts at around 61mph and subsides at just over 70mph. I recently bought an international 4700 with 7. Torque converters actually multiply torque at low engine speeds, usually by a ratio of about two to one. I assume it to be the clutch plates on the torque converter but not sure if that. It may be a little better but it still shudders or shifts constantly. I assume it to be the clutch plates on the torque converter but not sure if that. The objective of this paper is to present a generalized integration summary for torque converter clutches (TCC) to enable aggressive apply at high engine torques and engine speeds below 1500 rpm without adversely affecting noise and vibration (N&V). If engine pulldown is normal, torque converter is good: Broken shafts or gears: Drain transmission to determine if large pieces of metal contamination are present: Broken drive shafts: Inspect drive shafts and universal joints for external damage. Therefore, a bypass or lock-up clutch is used to mechanically lock the torque converter. The problem is referred to as a torque shudder and while the torque converter itself can be the cause the issue is nearly always fluid related. * A bad injector, making one or more cylinders either not fire or not fire with the same force as the others. torque converter 2212502202 I find the torque converter the most likely suspect in my case, as well. — Unsteady interaction phenomena created by the influence of the blade spacing have been reported in earlier experiments and CFD. Torque Converter break in can be confirmed with the StarSCAN®. I'm going to agree on the torque converter. When I am going from 1st to second, second to third the rpms hit about 3k and fall back or sway to about. Rotors and wheel bearings were my next step. (3) There will be no more worries about overheating the transmission in heavy traffic or hot weather pulling a heavy load due to the fluid shear of a poorly designed torque converter. The best part is it was covered under warranty. The problem occurs at random times and road conditions but always at lower speeds. We make torque converters for all makes and models: on highway, off highway, as well as OE converters in small runs up to 20,000 a year. The stall stage is the initial phase of the torque converter wherein the load is provided with a sufficient amount of power to start and synchronize the speed between the pump and turbine. Replace Torque Converter. I’m wanting to say it’s in the transmission or driveshaft, or rear end. Torque Converter Clutch Shudder. I have a 1993 Suburban, 1/2 ton 4WD with the 4L60E transmission. My 2004 Sprinter with 230K miles did that noise/vibration at least once a week since it was new. FYI, if you lift your foot off the throttle the torque converter will unlock to allow for coasting. Torque Converter Shudder Repair Procedure (Continued) C. One thing i took note of was that when accelerating and stopping the wheels with the hand brake, the vibration was completely gone. If you blip the throttle in park or neutral, you might hear a quick succession of knocks. Mine started doing it today under similar circumstances as others; 45-55 mph under load wile going up a long hill. The belt when straight in the sheaves should also be square to the engine crankshaft and jackshaft. It was explained to me that while the torque converter and transmission are covered under the CPO, the first step in diagnosing (the transmission flush) is not. With the clutch engaged, Ultramatic also transmitted some drivetrain vibration that the torque converter would otherwise have absorbed. I suspect that it's there when driving around town but not as noticeable at slower speeds and/or starts and stops. And I also noticed that there's also a pronounced vibration at around 1000 RPM as well. If you have the vibration just as before I would be confident that you can eliminate the torque converter from your list of concerns. The vibration is likely the Torque converter lockup clutch chattering under load, which is going to cause accelerated wear, and the wear pattern caused during this chattering may tend to make the clutch chatter more likely or less likely to occur in the future. 3 V8, 8-Spd, 3. To fix, the torque converter has to be replaced. As soon as I was out of the throttle it would return to normal the vibration would go away. I have started to notice a vibration when driving over 80-90km/h. They have been on the phone iwht Honda Hotline and sending them data to confirm the diagnosis be fore they rip my E apart. Torque convertor shudder? [closed] Ask Question Asked 3 years, 11 months ago. I tried to counter that in no way does it make sense that I would be charged $550 if the transmission flush fixed the problem but only $50 if they had to go on to replace the torque. I have had a stumble on load before that I thought was the torque converter slipping and it turned out to be a bad OEM plug wire (w 120,000) on it. New flywheel and torque converter. Here's what it is doing: from a standing start, under moderate acceleration, with a full load, there is a "shudder" in first gear, then it stops and is replaced by a steady vibration that I can feel in my seat through the rest of the gear changes. It was happening more consistently in 4wd, however, would also do it in 2wd going uphill. Some of these solenoids can only lock a torque converter fully, while others have a wider. 3 GMC Sierra - Duration: 1:36. Given this was the most recent change made we opted to reinstall the stock torque converter. It generally occurs at part throttle and light acceleration, between 15 and 50 miles per hour, just before the shift to one of the top gears where the converter reaches "lock-up. 3 with a 6 speed trans and two wheel drive I have a vibration in the steering wheel that I noticed when I bought the truck used with 16,000 miles I have had it back to the dealer 3 times and so far they have changed the torque converter, road force balanced the tires,Installed new motor mounts and. Other than that the transmission works fine, I don't notice any slipping. Given a constant output speed, the higher the slip speed, the higher the torque. 2011 Subaru Outback. The number 1 cause of vibration is failure to prepare the crankshaft for installation. The dealer has been great but their hands are tied. The converter pilot is broken, damaged, or fits poorly into the crankshaft. Converter having issues locking up smoothly under load But I admit auto trannys are not my area. Stopped off at a local transmission shop and the tech drove it for a couple miles and said he doesn't think it's the transmission, but more of a mis-firing. Once the vibration is found, there are six different separate problem categories it can fall into: 1st Order Tire (Freq 11-14 hz at 60 mph) 1st Order Prop Shaft (Freq 38-44 hz at 60 mph). This sounds like a homework problem and I'm treating it as such. Check converter seating with a scale and straight-edge at -A-. They said the engine was running rough in part due to an out of balance torque converter (I won't mention how much they wanted to charge me). Just an efficiency issue. The torque converter has been replaced, the computer flashed numerous times, and all TSB's performed including recall G25. The gear changes are smooth, but it does seem to go into overdrive a little too quickily. If experienced, the shudder may occur when the transmission temperature is between 38° C and 54° C (100° F and 130° F) during steady state driving with the torque convertor in partial lock (EMCC) operation. Add 4 more quarts of fluid to the transmission,. It didn't get better or worse, just more annoying and easier to replicate. It will do it at any speed, any gear under constant throttle or light acceleration. I've spent literally days online researching the rumble strip issue, and now trying to find out more about how to best deal with the code. I had a issue on my duramax that I thought was the torque converter. Show Full Signature Black 2006 LBZ 2500HD 4x4 CCSB. if i let off throttle or give it more throttle it stops. 7 liter 110k miles Recently, when under acceleration, heavy or light, my D is now vibrating like a son of a gun between 35 and 55-60 mph. It's not unusual to see a 1000 RPM drop when the TCC locks when driving under hard load and 500-600 under normal loads. while i was under the jeep i took some measurements, and then started playing with a spreadsheet to see the effect of various angles. Normal Torque converter lockup vibration. Repair and Replace Torque Converter Clutch and Reprogram ECM (PCM) Engine With the vehicle at operating temperature, confirm the condition described in the Introduction. Engine and trans mounts. When slip values are high, load losses are no greater for a figure 7 shows vibration amplitudes for the engine and the transmission output as a function of the. Torque converter shudder fells like a slight to heavy vibration in the transmission, and is usually accompanied by an interruption in power transfer. • NO — Go to step 10. I took it to the tire shop to have it checked and they did come back with an out of balance tire but it didn't fix the problem. ) till repairs around 10K later. Torque converters can multiply torque under certain operating conditions. When I let off the throttle it completely goes away, it is only under power. I would get a vibration under heavy load. Is there a brief shudder intermittently present while driving under a light load between 25 - 50 mph? Typically, the condition will be most noticeable prior to an upshift. We assist you in gently accelerating your driven machine, owing to the hydrodynamic principle, thereby extending the life time of your system. The development of the parameter identification algorithm is presented in Section Proceedings of the 20th World Congress The International Federation of Automatic Control Toulouse, France, July 9-14, 2017 Copy ight © 2017 IFAC 4924 On-line Identification of a Torque Converter Model Kirti D. * A damaged flywheel, or clutch plate. • verifies inlet and outlet valve pressure. Pull the flywheel cover and run the engine check for run out in the converter. Took it to the dealer three times. Monster Sale Price: $290. Maintained very well. Home > SHOP Transmissions > Ford Transmissions > 4R70W, 4R75W, 4R75E (04-08) In 2003, Ford made improvements to the 4R70W with features such as more lugs for the output shaft sensor to read off of, a new torque converter, a new front pump assembly, and a vehicle speed sensor. It is going to vibrate. when that fails would that be causing vibration only when VCM is engaged? Because. Replace the torque converter under any of the following conditions: External leaks appear in the hub weld area. * A damaged flywheel, or clutch plate. Mubashir Hussain, Sami-Ur-Rehman Khan Telecommunication Engineering Dept FEST, Iqra University Main Campus Karachi, PakistanAbstract– This paper serves as a survey on energy harvesting from different sources and their methods presented after a brief literature review of different technical papers available in the public domain. Replace the torque converter. Discuss it at Forum. I don't get any shudder or surging though. All I had to do was to fool the ECM into believing that it still had control of the torque converter solenoid by feeding it 12 volts through a resistive load. Engine code reads bad torque converter :( So, i just told them to rebuild the tranny too. 700R4 won't shift. Mostly starts vibrating around 1300 rpm more noticeable in the upper gears, can feel it in steering wheel and floorboard. The objective of this investigation was to develop a dimensionless model for predicting the onset of cavitation in torque converters applicable to general converter designs. I told the guy I thought it was Torque Converter. Re: "Rumble Strip" Vibration Sep 30 2014, 5:01pm After reading the first thing that came to mind was Torque Converter, my brothers Focus does this same thing only the convert cost more then his car is worth so he's just driving it into the ground…. Other con-. It used to be only while at a red light with A/C on and foot on brake or in park but not as heavy a vibration. Figure 4 shows such a multi-function torque converter. A shudder or vibration may develop while driving at speeds between 35 and 40 MPH. The stall stage is the initial phase of the torque converter wherein the load is provided with a sufficient amount of power to start and synchronize the speed between the pump and turbine. I believe torque converter shudder is typically associated with light throttle and the upper gears. The torque converter shields the driveline from sudden torque shocks and vibration. 5-inch-diameter water-cooled torque converter was used with the 392-cubic-inch engine. It doe not occur while towing or under load or while manually holding the gear down or TOW / HAUL mode. doesnt do it on normal (harder) acceleration nor at higher speeds. my old 302 had a moderate vibration i blamed on the flexplate i installed so my converter would fit because i dont remember a vibration before then. 7 days in shop. The development of the parameter identification algorithm is presented in Section Proceedings of the 20th World Congress The International Federation of Automatic Control Toulouse, France, July 9-14, 2017 Copy ight © 2017 IFAC 4924 On-line Identification of a Torque Converter Model Kirti D. Under this condition, the converter will produce torque multiplication that is less than what could be achieved under stall conditions. This is most common after engine or transmission repair or after a collision. i am getting a shudder at about 15-24 mph on acceleration and his is about 40-55, i believe from other forums we have a break down of tranny fluid and that is creating the torque converter shudder. The shudder from the torque converter isn't good. Make sure to add fluid to the torque converter prior to stabbing it into the transmission unit. again the transmission feels like it shifting ok. Komatsu SmartLoader Logic reduces the clutch engagement shock of lock-up by controlling engine torque. I have been having a vibration from under the truck - finally pinpointed when it happens. Dealer thought it was a seal. If the vibration stops, with the torque converter disconnected, the problem is found. The Junker theory is discussed. I'm not trying to start a prolonged argument, but many people have complained that driving in 5th gear under very light load between 45mph-50mph, the RPMs pulse. The belt when straight in the sheaves should also be square to the engine crankshaft and jackshaft. The motor power of the industrial agitator in operating under the frequency conversion speed control is similar to its characteristics of the revolving speed and pump load. This is actually a known issue in MDX models and the recommended repair is to replace the torque converter and install a software update for the power train control module. There is a real loud knocking sound coming from what sounds like the torque converter or flywheel area. When you're in gear, the RPMs change because the different load and drivetrain mass changes your fundamental frequency. BACKGROUND. I also checked if torque converter of flex plate loose. By properly modifying the converter's internal components, it's possible to alter the stall speed and create a torque converter that is tuned for a particular engine. However, vibration problems can happen when these torque converters go bad. The loaded test is important to prove the quality of new, refurbished or overhaul gearbox operating under real-life circumstances. And I also noticed that there's also a pronounced vibration at around 1000 RPM as well. 2003 F-250 Vibration. You can replicate this at any speed on the highway; Keep your foot into it until you know it's locked in 5th under load, lift off to coast , reapply slight pressure to the throttle and watch your RPMs blip for 3-4 seconds until the lock re-engages. While under a load my has a heavy vibration. See all problems of the 2010 Chevrolet Traverse. Rear u joint is tight. Mechanical energy, from a typically constant speed driver, is. Hi guys, I'm asking this on behalf of my mom, who owns an '07 with VCM. Transmission/torque Converter Problems The Nitro has been in for the third time to fix the shudder. Then add 8 quarts of fluid to the unit, run it for 30 seconds, then shut the engine off. 2018 DEUTZ FAHR 5130 In vendita a Tulsa, Oklahoma In Vendita A TrattoriSuperMarket. I lived with mine for a year and pursued all available channels for a fix. His other comment was not to fix or overhaul the transmission until it stops working. I notice that it is most noticeable when the engine is under load. No vibration when in gear and parking brake set. I am thinking of buying a SBC/TH350 260Z (looks like JTR mounts) and drove it last night. At least that’s what the tech told me. Up until very recently, most torque converter lock-up clutches weren't designed to handle full engine output torque of even a stock engine, nevermind a built one; that's why a lot of them unlock if you even breathe on the accelerator pedal. correct torque settings on connections. For example, a 2,400-rpm stall speed torque converter begins to transfer torque at approximately 2,400 rpm. Lockup torque converters were added to many newer-model vehicles to help with fuel economy. when the truck is under a slight load (for example from a dead stop up a slight incline, or from a dead stop when making a sharp turn), and i accelerate very lightly, at about 3 mph i get a real quick, loud vibration. Unless otherwise modified, it is not engaged in the manner you suggest. If you're looking for the next big thing, FUTEK has a library of over 100 new and innovative ideas to incorporate its load cells, torque sensors, pressure sensors, and multi-axis sensors. torque converter holding the load to the power source at all times. Picked up truck today. Th350 is completely rebuilt. This is actually a known issue in MDX models and the recommended repair is to replace the torque converter and install a software update for the power train control module. I have a 2018 Chevy Silverado double cab LTZ 5. It does feel like low line pressure / torque converter slip / clutch pack slip at LOW or MILD throttle input and low engine RPM only. I’m wanting to say it’s in the transmission or driveshaft, or rear end. Welcome to the world of fuel efficient four bangers. I am nervous now that you told me the torque converter is still under load while in Park and Neutral. doesnt do it on normal (harder) acceleration nor at higher speeds. Abstract:The most important utility in our lives as of today is automobiles, there is a lot of research and development is going in every section of the automobile field to give the safest possible vehicle to the world. My Plymouth has a 318 with Torqueflite and double WCFB's. Generally, the shuddering is accompanied by engine rpm dropping by around 5000 rpm. Make sure the tachometer is viewable from the driver's seat. So you have vibration under load. Hi guys, I'm asking this on behalf of my mom, who owns an '07 with VCM. 2 (L86) – Truck and Utility 1 24279495 Torque Converter: 6. He is $190 to change and fluids, and quoted me $1100 to change the torque converter. In a vehicle with a known good torque converter, Engine Speed, Input Shaft and Output Shaft speeds will all be smooth. If vibration on lift, which means minimal load on tranny/torque converter, check injectors, coilthings that when strain is put on engine and cause it to not perform when load is applied to it, until the rpm raises enough to over come the strain. torque converter family for starting gas turbines. It generally occurs at part throttle and light acceleration, between 15 and 50 miles per hour, just before the shift to one of the top gears where the converter reaches "lock-up. Traveling at interstate speeds (50-60 mph), as the suburban starts up the hill, it struggles to maintain power and speed begins to drop. It also seems to pulsate when driving on the flat so it seems to only happen when under load. full engine load curve. This function is best suited for the equipment that requires stable speed such as a cutting machine. Its a steady knocking sounds and is pretty loud. It almost feels like your driving over a rough bumpy road but when I put it in neutral or downshift into 3rd gear it goes away. Pull the flywheel cover and run the engine check for run out in the converter. If you are using inferior OE torque converters with your performance package you are, in essence, wasting that power. Vehicle Vibration Diagnosis flex plate and torque converter or flywheel and pressure plate assembly. The ATS 3029302164 TripleLok Torque Converter for your 94-07 Dodge 5. Only when vehicle is moving and only under load. 9 eng , e4od trans) concerning a violent shudder when the engine is under a load over 35mph. * A bad injector, making one or more cylinders either not fire or not fire with the same force as the others. They are now thinking it is the Torque Converter. Worn or broken engine or transmission mounts can transmit normal vibrations that usually. I had a shop swap out the Powerglide for a rebuilt Turbo 350 with a new torque converter. This vibration sounds like it's coming from behind the driver's console. The result is that the engine vibration at those speeds corresponds with the stronger vibration that I feel while the engine is under load. Show Full Signature 2015 T250 MR cargo w/windows, 3. Vibration in a driveshaft can be caused by many conditions. I have a 97 that just started the driveline vibration. full engine load curve. ISSUE IF QUESTIONS STILL ARISE AFTER REVIEWING Vehicles equipped with an AODE or 4R70W THIS TSB ARTICLE, CALL THE LIVONIA transmission (refer to Vehicle Application Chart)TRANSMISSION HOTLINE AT (800) 821-5046. The torque converter needs to be replaced, which requires between $300-$500 for a replacement, lockup, 4L80E converter. The throttle needle and car shakes and car will cut off and stall to turn on again. let me try and explain this. i am getting a shudder at about 15-24 mph on acceleration and his is about 40-55, i believe from other forums we have a break down of tranny fluid and that is creating the torque converter shudder. We make torque converters for all makes and models: on highway, off highway, as well as OE converters in small runs up to 20,000 a year. Ie going up hills. Vibration from stop during acceleration. This shudder may be observed while driving under light throttle conditions between approximately 25 – 50 mph. Repair and Replace Torque Converter Clutch and Reprogram ECM (PCM) Engine With the vehicle at operating temperature, confirm the condition described in the Introduction. This may be due to a sticking torque converter control solenoid. Engine mount is actually a vibration isolate-or, rubber barrier between.
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