Torque Converter Vibration At Idle

Torque converter noises are easy to isolate. Please help. I am also having a similar situation. Minimum engine idle speed (with transmission in drive) 500 rpm MOUNTING TORQUE CONVERTER STALL TORQUE RATIO Kp-FACTOR* AT STALL TC-275 1. Complete Rebuild = $3500. The Fast Lane Truck 605,082 views. However, there is torque converter shudder (not a thing, a result). It sounds like something in the valvebody of the tranny is causing the torque converter to grab too hard at idle. Will torque converter cause vibration on Chevy s10 2. I couldn't quite make out everything he was saying with the German's accent. I cruise along at between 45 and 55 mph with the transmission in OD and torque converter locked up, rpms between 1400 and 1600. the mechanic suggested that the torque converter is out of balance, and if I want to fix it, the converter will have to come out, get to a machine shop and will become expensive. To isolate whether the vibe is engine related, the simplest test is to place the transmission in neutral and with the car not moving; check to see if the vibration can be felt at idle, as well as throughout the rpm range. For better fuel economy, the CR-V has a lock-up torque converter. The torque converter is located between the flexplate and the transmission. The vibration eventually got so bad that the car didn't even feel safe to drive. Buy TORCO Chevy GMC 2200-2500 Stall 12" Torque Converter 1985-1997- 4L60 4L60E 700R4 700-1 year warranty: Transmissions & Parts - Amazon. The vibration eventually got so bad that the car didn't even feel safe to drive. The solution is to replace the front hydraulic engine mount. Remove transmission housing bolts. This car was in a front end collision and was repaired, ( I DID know this when I bought it). Especially when decellerating, or trying to hold it steady at 1500 rpms. They replaced the torque converter and it was good for a while. I have had a vibration in the motor for 2 months now ( at any speed and at idle in neutral or in gear), I have been told many remedies on the motor side and have checked almost all of them. It's an automatic trans. The engine-torque direction changes, from reverse to drive. Since the entire converter (pump, turbine and stator) turns while the transmission is in park and neutral, a converter noise will go away in those ranges. He let it sit for a couple of hours and then took note of the rough idle. The ISS value on the SUV during the vibration event was 1541 rpm, and the gear ratio of the transmission in 5th gear was. Vibration Analysis, Part 2: Driveline the vehicle was repurchased from the customer after the source of an engine idle vibration could not be found. Correctly setting the stab depth of the torque converter has become a very, very important procedure of the R & R process. No change in vibration. Given a constant output speed, the higher the slip speed, the higher the torque. One day the (flex plate on Mopars) let goall over the highway. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon. An out of balance torque converter will cause vibration during a stall test. With an idle speed of approximately 800 rpm and a typical torque converter designed for 400 Nm, these losses are about 3 kW, according to LuK—about one third of the average power required to actually drive the city cycle. However, once the gas is pressed, the vibration and loud noise goes away. Torque converter faulty Transmission faulty Replace fluid Replace torque converter Disassemble and inspect trans-mission AT-12 AT-37 Vehicle does not move in any forward range or reverse Manual linkage out of adjustment Valve body or primary regulator faulty Parking lock pawl faulty Torque converter faulty Converter drive plate broken. 4L), or Symptoms - Engine Controls (1. Remove transmission housing bolts. Would a Bad Torque Convertor Cause Vibration A torque converter is a round object between the engine and transmission of automatic vehicles. 8? The idle sensor need to be increased to allow more fuel to the motor. SOURCE: Vibration when in gear, and stalling. Does the 2020 Chevy Silverado HD Duramax CRUSH the Ram Cummins on the World's Toughest Towing Test? - Duration: 18:23. If I slightly press the gas pedal over 750 rpm then the vibration to the steering wheel is gone. That's pretty cool man. with the engine at idle there is a slight vibration, but when the transmission is shifted from park or neutral into any gear There is a horrible vibration the flywheel and torque converter and starter look new but the teeth on the ring gear look like they are being damaged by the starter. I couldn't quite make out everything he was saying with the German's accent. The problem is typically diagnosed as a bad torque converter. Removed harmonic balancer and ran. It is almost like the engine is idling at a resonant frequency that will vibrate everything inside the car. Nothing at idle, but just off idle starts vibrating, gets worse (turns into a shudder) up to about 1400 then smooths out. people have posted it is normal. ATF wont do it at basic idle. Not idle in Park/Neutral. Spark timing is set to 10* inital, and I have a crane adjustable vac. This morning my wife gets in the car and is met with the same vibration noise, this time occurring while the car creeps forward in idle, rather than with your foot on the brake, stopped, idling. If the vehicle stalls, see torque converter operation concerns. We show you how to diagnose and fix Corvette driveline vibration issues. None of this work impacted the vibration that occurred at idle in D, and it is always the same regardless of conditions outside or engine temp. I've never had a torque converter problem, but wouldn't it vibrate bad at speed when it is really turning fast? My rough idle problems have always been carb/vacuum related. Also pops back in intake on hard acceleration or under a heavy load. It starts at 12 lightly and gets worse till 6 and is smooth till 12. Here are a few tips if you suspect your vibration is coming from the driveline. Took it to a second shop, one of. Do not replace the torque converter until completing all engine and transmission diagnostics. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon. The vibration at idle affects the 2. flexplate or the torque converter. The torque converter provides improved efficiency and a broader range of performance in second gear dozing and scraper pushloading. Sonnax is an industry leader in the cutting edge design, manufacture and distribution of the highest quality products to the automotive aftermarket, commercial vehicle industries, and industrial sectors utilizing drivetrain technology. Got the same problem, rough idle overnight, loud vibration in reverse. Take a look at the underside of the computerized gearbox and torque converter for leaks. 2012 Civic Idle RPM & Vibration. 1 x Cylinder block sub-assembly What is the rod and main torque. Torque converter noises are easy to isolate. Recently experienced a vibration/shudder (quite noticeable) at engine rpm 800-1400. No change in vibration. The gear meshing test rig is shown in figures 1 and 2. So its' either the engine (highly unlikely for a straight 6), or the flexplate is out of balance despite it being brand new. The torque converter converts the power from the engine, seamlessly and smoothly to the transmission instead of having a clutch to assist on take off as in a standard transmission. I replaced the engine mounts due to a vibration when we found the left side was broken. but a torque converter makes the most use of the motors. people have posted it is normal. Danfox, I don't know a whole lot about the timing system. The Honda Odyssey Torque Converter class action lawsuit complaint reportedly asserts claims for alleged violations of the California Consumer Legal Remedies Act, violations of unfair business practices act, fraud, breach of written warranty under the Magnuson-Moss Warranty Act, and breach of express warranty under Cal. Dealers say they cant duplicate. Melling high performance camshafts are developed, engineered, tested and manufactured with the highest standards of quality and materials. Cheers, Some autos with torque converters show this attribute. Alarmed, the box was removed and found the torque converter had grabbed the bush in the pump plate and worn the hole quite elliptical. I have a M1078 with a CAT 3116 and at idle notice vibration coming from the motor sometimes. A flexplate is mounted to the crankshaft and connects the output from the engine to the input of a torque converter. Not only will this converter last longer, it also has 3x the torque holding capacity. When the vibration occurs maitain the same throttle position but apply the brake pedal just enough to turn on the brake lights. Even though I had the engine idle set properly when I selected drive the engine would stall because of the internal problem. Just replaced my clutch fan blade because one of the fins had a piece missing. It serves several purposes, such as giving an engine the ability to idle as well as increasing an engine's torque. SOURCE: Vibration when in gear, and stalling. Check out free battery charging and engine diagnostic testing while you are in store. When engine temperatures reach 150°F (65°C) or higher, (from engine idle up to approximately 1700 RPM’s), this noise can typically be heard at the front wheel well and is often isolated to the transmission bell housing or oil pan area. I suspect that it's there when driving around town but not as noticeable at slower speeds and/or starts and stops. If it's not crappy out tomorrow I'll get under the car and check out the exhaust system. THE SLIPPAGE PROBLEM. Vibration when taking off slowly, at the. org is the source for sharing knowledge and information about enjoying, caring for, maintaining, repairing and owning the BMW e23, e32 and e38 7-series automobiles. And the tranny/TC in our truck is prone to an early grave. I had it happen on my 94 Cavalier a few years back and was a cheap fix at the local car mechanic. Re: Vibration only when stopped in gear. To isolate whether the vibe is engine related, the simplest test is to place the transmission in neutral and with the car not moving; check to see if the vibration can be felt at idle, as well as throughout the rpm range. I just bought a 66 mustang with C4 trans. Without being there to diagnose it myself, I'd guess torque converter shudder. Discussion in ' They also rotated the torque converter thought all six bolt up position with no change. So next I took out the bolts on the torque converter and run. idle speed engine speed conventional torque. Well, a garage that is equipped with the right machinery would be able to connect up your transmission and see what the hydraulic pressures available in the box are, it might be a bit of a laugh for the amateur mechanic to do this at home, without. Still need to replace some exhaust gaskets, especially the "donut" gasket since it is all swollen and seized. Steering wheel, seats, doors. other owners have commented on it elsewhere in the forum. Torque Converter Shudder Repair Procedure (Continued) G. idle speed engine speed conventional torque. The vibration is felt in P/N and any gear pretty much first appearing around 1300 RPM, then smooths out, then re-emerges at 18/1900 RPM, then smooths out above that. I have narrowed it down to in the front near the tq converter inspection cover. The PCM on a car with the automatic transmission is programmed to operate the torque converter lockup solenoid. Buy TORCO Chevy GMC 2200-2500 Stall 12" Torque Converter 1985-1997- 4L60 4L60E 700R4 700-1 year warranty: Transmissions & Parts - Amazon. torque converter characteristic (loose/stiff, stall torque ratio and peak efficiency, etc. 8? The idle sensor need to be increased to allow more fuel to the motor. We changed the ignition coils and spark plugs, transmission fluid, oil changed, and got the catalytic converter checked and it test fine. Before the hot rod converter trans people got into the torque converter business, other than for full-race transmissions, it was common to use smaller diameter OEM converters to get the desired higher stall speeds. It seems to always happen around 650 -700 RPM only. Immediately the car had what felt like a rough idle, but the tach was dead on where it was supposed to be with no fluctuation. If the concern is still present with the torque converter clutch disabled (Mode B) or with the torque converter clutch locked (Mode C), the root cause of vibration is NOT TCC shudder. A quantitative criteria is proposed for predicting early and advanced cavitation in terms of suitable non-dimensional pump speeds. 2009 Traverse - idles fine - however when driving if the combination of speed and driving let the engine sit at 1500 rpm I get a weird vibration/shudder - when this happens the rpms will go up slightly (I'd say perhaps 100-200) and then the vibration stops - then it will go back down to 1500 and it will happen again. The torque converter shields the driveline from sudden torque shocks and vibration. Release the brake pedal. ,3:23 gears, but i'm using the stock /6 torque converter. Recently experienced a vibration/shudder (quite noticeable) at engine rpm 800-1400. The vibration at idle is most likely coming from the engine. A torque converter shudder is a brief shake or shudder in the vehicle when internal clutches apply inside the torque converter. Its' will allwo the engine to "lug" as low as 1300RPM in 4th or 5th gear. Proper fluid is required for smooth torque convertor engagement but if the pronblem is that severe new fluid isn't going to help. In gear there is a much greater load on the engine. This is going to cause the idle to drop a bit and this is where you'd feel the most vibration. CORRECTIVE ACTION Replace the torque converter, or the torque converter. This is also true for any converter from about 3,000 RPM on up. Thanks, Mark. Make TSB Number TSB Title; Ford: 02-1-9: Engine Oil - Recommended Applications For Sae 5W-20 And Sae 5W-30 Motor Oils: Ford: 02-19-1: Thump/Bump On Acceleration From Stop Or When Braking From Driveshaft. Lift the car and bang on the catalytic converter, listening for sounds of loose filament. As a fluid coupler, the torque converter is a compromise between slippage, allowing the car to idle in gear, and efficiency, transferring as much of the engine’s power as possible to the. 1994 Dodge Ram Truck Technical Service Bulletins. However, once the gas is pressed, the vibration and loud noise goes away. DNA DRIVELINE NEEDS ASSESSMENT TSB # SYMPTOM SOLUTION PART # 506 No Lock Up due to damage to the internal converter metal Proper installation techniques are - clad seal required to avoid damage to the internal 507 converter metal clad seal, if damaged, a 508 Leak around the front seal and torque converter hub new torque converter is required. 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. Try disconnecting the torque converter at the flexplate, tie it carefully with string in the rearward position away from the plate, and start the motor and run it up. Recent repairs include, dealer replacement of rear ABS sensor and reprogram of computer. I agree with you that an output bearing wouldn't shake the car at idle. High idle will make a small vibration or cold. replaced belt tensioner , took the fan clutch and fan off, removed serpentine belt, making nothing thus turning, but still get a vibration in steering wheel and can feel it with ease. I remember a thread about how the torque converters will rattle and eventually fail, I'm thinking this might be it. was causing the vibration. I can restart the engine, but unless I rev the engine as I shift to drive, the truck stalls again. My mechanic called up a transmission shop and they have heard of issues with warping and cracking of the Flex Plate causing a vibration. I am thinking it is either motor mounts, or the idle speed needs to be adjusted. I have the same issue with the vibration at idle. torque) which is what made me think about torque converter. The A/C will bring the RPM to just above idle and the torque converter tries to engage, but is fighting your foot on the brake. 75% with stock. Just put a 360 magnum in my valiant, took a long minute to sorted out an oil pressure problem but now ive got a rotten vibration coming up in the rpms after idle. Correctly setting the stab depth of the torque converter has become a very, very important procedure of the R & R process. At the coupling point the lock up clutch come into play and locks the turbine to the impeller of the converter. Rev the engine in Park, Vibration = torque converter, flywheel or engine. It sounds like something in the valvebody of the tranny is causing the torque converter to grab too hard at idle. It's most noticeable in 5th gear at around 40-45mph because at that speed the car needs a large amount of throttle to maintain speed, causing the "rumble". This car was in a front end collision and was repaired, ( I DID know this when I bought it). 2 with a vibration at a standstill. CVTs mated to 4 cylinder engines will cause noticeable vibration. Get proven performance and reliability from B&M, TCI, Turbo Action, Hughes Performance, ATI Performance Products, Performance Automatic, and other leading brands. 3l chevy and into twin toyota/marlin cases. 97 L/C 290,000 miles, regular service. The torque converter is a simple and yet complex driveline component. 2006 Ford Expedition. The ISS value on the SUV during the vibration event was 1541 rpm, and the gear ratio of the transmission in 5th gear was. When the torque converter clutch is not locked, it can serve as a viscous damper between the engine and rear drive tires. The vibration eventually got so bad that the car didn't even feel safe to drive. Loose torque converter bolts/nuts will create a knocking type sound at idle or when there’s no load applied. How loud is this converter rattle? The noise I hear is noticeable driving down the road with the. The lock-up torque converter is In order to reduce idle time, Komatsu offers Auto Idle effective for both load-and-carry application and V-shape loading, which uses lower gears. No Drive/Slips in Drive. So I checked the damper to see if it was loose or the ring was loose on the damper. So I'm thinking the vibration is an out of balance TC or something in motor, but the motor runs strong so I don't think it. Its' will allwo the engine to "lug" as low as 1300RPM in 4th or 5th gear. The scenario of you pulling down the converter to the flex plate with the bolts could have caused the flex plate to bend and take a permanent set, or have damaged the snout of the converter. The dimensionless pump speed that marks early cavitation is obtained by. I have the same vibration issue that a lot of ppl seem to have on here. However, once the gas is pressed, the vibration and loud noise goes away. It serves several purposes, such as giving an engine the ability to idle as well as increasing an engine's torque. The vibration is a rolling vibration and is definitely coming from the motor>torque converter>transmission. Sometimes the flex plate could be cracked, making the same sounds and vibrations. TSB S307-12 This Technical Bulletin has been issued to address customer complaints of an automatic transmission driveline clonk/knocking when changing gear from reverse to drive, fifth to fourth or second to first. Driveline vibrations are probably the hardest things to diagnose next to intermittent electrical problems. How to test for a torque converter problem. 1 transmission oil filler tube to the oil pan. A modified torque converter is now available to resolve the concern. The Chevrolet Corvette is an iconic sports car that was first introduced in 1953. But I did read in a forum a while ago about an improperly installed torque converter causing vibration. The input shaft is driven by a DC Motor, with typical characteristics of those used in product, namely a slight variation in speed at steady state. Thanks, Mark. A common problem on many General Motors cars is the Torque Converter Clutch fails to release and causes the car to stall when it comes to a stop. All info I can find points to the torque converter and my mechanic says all his information points to the torque. Trans function fine. My mechanic called up a transmission shop and they have heard of issues with warping and cracking of the Flex Plate causing a vibration. Working through inspection hole, carefully pry torque converter loose from flywheel. I have replaced my front axle u-joints, ball joints and varified that my rear end did not have too much play. Torque Converter Clutch Shudder and Vibration and the Tech2Tech® video Interpreting Torque Converter Judder Snapshot Data. One of the classic symptoms of a bad torque converter is a vehicle that is sluggish or lugs when starting out from a dead stop. Things that I changed in order to repair the problem, but no luck, replace the torque converter, had the drive shaft rebalanced and new u-joints, replaced rear end with a new one, replaced the transfer case (new), replaced trany rubber support, new tires. Excessive Vibrations in Drive when holding down the brakes All this is in addition to a rough but stable idle when in park. At idle you might not notice any problem, but at a certain higher speed, (the harmonic), the vibration will get real bad. For years it's given a vibration felt through the steering column, gear shift, and dash at idle in gear when stopped, which gets progressively worse (I usually just put it in neutral until the light changes). Might be the torque converter bolts coming loose from the engine. If the vehicle shakes at an idle, and gets better with engine speed, try shifting from park to reverse. I was directly under the TC and it was noisy right above me. Also, when I am passing through the lower rpms from 1250 -1750, there is a definite vibration from the car. Recent repairs include, dealer replacement of rear ABS sensor and reprogram of computer. However, once the gas is pressed, the vibration and loud noise goes away. This is what allows the engine to idle instead of cut off when your wheels and transmission stop, such as when you're at a traffic light. The vibration is made worse by driving in full time 4WD, that is, when more torque is applied to the front axles and engine. I think we have my bros vibration issue narrowed down to the torque converter. When the transmission is in gear and the drive wheels are stationary, the turbine in the torque converter doesn't spin, because the turbine. To make me happy, they reflashed the ECM and TCM and raised the idle. That was a very strange service encounter. is tied to the low RPM and the drive shaft when engaged. Dd15 engine torque spec 1. The vibration lasts about 5 seconds and has a very odd noise that happens at the exact same time. This was by no means scientific or real world. I have a chevy 2500HD, 6. Sometimes the flex plate could be cracked, making the same sounds and vibrations. make sure that for sure the vibration is. My buddy's 350 in his 39 has developed a bad vibration at about 1100 rpm. If it's related to the torque converter, even just letting the engine idle will make it go away but you'll have to be in neutral. • Lock-up clutch torque converter, combined with lock-to-lock shifting, delivers smooth shifts, fast acceleration and speed on grade. If there is no vibration present, you know that your problem is not related to the engine. i feel a very slight vibration, when the car is stationary at the Signal in "D" mode, which wasnt there before. Transmission mount is new, and the Torque Converter came with my recon transmission. Power is being transfered to the transmission and then to the wheels. Lift the car and bang on the catalytic converter, listening for sounds of loose filament. Pretty sure by the time you get to 2000 RPM from idle, MDS has turned itself off anyway Ideas that have gone through my head: 1. 8? The idle sensor need to be increased to allow more fuel to the motor. Not only will this converter last longer, it also has 3x the torque holding capacity. Each Streetfighter torque converter is pressurized and subjected to a leak test to confirm the integrity of all weld seams. Changing the idle speed +/- 10, 20, or 30 RPM will make a difference in the vibration level. 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. 7 N*m (17 kgf*cm, 15 in*lbf) H. Trans Fluid starts to break down around 195 F. Things that I changed in order to repair the problem, but no luck, replace the torque converter, had the drive shaft rebalanced and new u-joints, replaced rear end with a new one, replaced the transfer case (new), replaced trany rubber support, new tires. Complete Rebuild = $4500. This means the engine revs far higher than it needs to, generating additional wear and consuming more fuel than required. The reason for this is that there is always an operating condition with a closed torque converter for transmission types with large total ratios and. I have a 2007 Acadia that has a shudder now at 35mph. Carefully stuff it in neutral, turn off the engine, and cost, then see if the vibration is still there. Torque converter. Unique strategies are utilized to safeguard against damage to the belt and pulleys should the converter clutch get "stuck on" due to a faulty solenoid, stuck valve, leaking sealing rings or a defective converter. We usually relate vibrations when the vehicle is not moving to the engine or a torque converter. Given a constant output speed, the higher the slip speed, the higher the torque. Thanks again!. The mechanic at the dealer who sold me the truck mentioned the torque converter locking up. TORQUE CONVERTER Automatic Transmissions - Course 262 11 Now that we’ve looked at the parts which make up the torque converter, let’s look at the phenomenon of fluid flow within the torque converter. It serves several purposes, such as giving an engine the ability to idle as well as increasing an engines torque. If you still feel vibration it's driveterainas the engine and torque converter will be at idle on coast down. A torque converter shudder is a brief shake or shudder in the vehicle when internal clutches apply inside the torque converter. The other thing that could cause an engine vibration that goes away at times is a loose heat shield on the exhaust system. I have a 86 m1008. Kind of like deep base. Hi, I wanted to echo the information in this forum for engine mount vibration. The weights on the outside of it look to be missing. Also pops back in intake on hard acceleration or under a heavy load. The Physics of the Torque Converter The torque converter consists of a fluid coupling with an impeller, a turbine and a stator. It's why a worn or faulty pump makes a whining noise in all gears, including park and neutral. 66800, I have an engine vibration at idle and below 15mph coming from engine. If there is no vibration present, you know that your problem is not related to the engine. 9L Cummins with the BD-Power 1071260 Hi5 23-Spline High Stall Torque Converter. All of the performance torque converters offered by Speedway Motors are engineered to provide improved strength and durability. I have a 2018 Chevy Silverado double cab LTZ 5. A judder from the torque converter lock-up clutch may be felt while driving between 20 and 60mph. My buddy's 350 in his 39 has developed a bad vibration at about 1100 rpm. He let it sit for a couple of hours and then took note of the rough idle. Today, we have come to learn that stall speed is determined by the torque output of the engine. An isolation-mounted pressurized cab reduces dust, noise and vibration. It had the piezo type injectors in it which yours should have too. Hi, my 664 Clark skidder has a bad vibration in it. If the vehicle stalls, see torque converter operation concerns. other owners have commented on it elsewhere in the forum. 2017 HONDA PILOT TSBs (80) Bulletin: APAS04042017901 Component: 133000 visibility:power window devices and controls Summary: Dealer message - american honda (ahm) is investigating certain 2016-2017 pilots & 2017 ridgeline with a customer complaint of the front driver's and/or the passenger's window slow to open/close. Took it to a second shop, one of. Steering wheel vibration during idle My 89 SE-i has a lot of vibration when I am idling and in drive. The torque converter malfunctioned internally and the stall speed disappeared. Carefully stuff it in neutral, turn off the engine, and cost, then see if the vibration is still there. Car will not stall at traffic light but you feel the lope and vibration. If a vibration is being caused by torque converter the converter is broke inside. The repair manual said to mark the position of the Torque converter to flexplate position and reinstall it in the same position. The torque converter on my 2005 Ford F-150 has had two torque converters fail in the drive train. I know some vibration is normal, but I feel like my Altima's is worse. 9, is noted to have an open, high flow converter. 4L), or Symptoms - Engine Controls (1. Before the hot rod converter trans people got into the torque converter business, other than for full-race transmissions, it was common to use smaller diameter OEM converters to get the desired higher stall speeds. Vibration on slow acceleration I know there are a lot of threads about vibration when accelerating, but I can't seem to find any that sound similar to my issue. This car was in a front end collision and was repaired, ( I DID know this when I bought it). So I called a local repair shop that gets great reviews and they said they would never replace just the TC because the transmission most likely has d. Torque Converter Shudder or Vibration Between 35 and 40 MPH (Supersedes 06-003, dated February 2, 2006, to update the information marked by the black bar) SYMPTOM The vehicle shudders or vibrates between 35 and 40 mph. The lock-up torque converter, preset idle time limit. If it's related to the torque converter, even just letting the engine idle will make it go away but you'll have to be in neutral. Ball joint to control arm nut(s) should be tightened to 26 ft. As a fluid coupler, the torque converter is a compromise between slippage, allowing the car to idle in gear, and efficiency, transferring as much of the engine’s power as possible to the. I *think* the motor and transmission mounts are ok, but the engine does clunk and torque pretty badly when you step on the throttle a lot of the time. At 1500 rpm and 38-40 mph the torque converter in the transfer case was vibrating, causing the heat shield to growl because of the transfer of vibrations. How loud is this converter rattle? The noise I hear is noticeable driving down the road with the. Vibration in the whole front half of skidder, hand controls, seat, frame, blade etc vibrates when moving or not moving. Recent repairs include, dealer replacement of rear ABS sensor and reprogram of computer. Acceleration also feels a little off. Yes, my Jeep Liberty 2007 has had this problem with TWO torque converters replaced (see DTC P0732)-still needing a third torque converter or new transmission. Disconnected torque converter to flex plate. of the engine will cause vibration and eventually damage the engine. I think I have ruled out detonation and A/F ratio. If the vibration is still there it is an engine misbalance. When you're at idle, there is no torque on the fasteners so they can 'act' loose and move around, causing your vibration problem at idle. In some Mitsubishi cars, a failed engine mount can cause vibration felt in the steering at idle when the transmission is in Drive. The powertrain has a very irritating vibration when accelerating through or holding it at 35 - 40 mph. It's why a worn or faulty pump makes a whining noise in all gears, including park and neutral. It surges slighty like it's going to kick down and is accompanied by a vibration or shudder. Improper installation will re-sult in poor performance and possi-ble damage to the torque. Our dealership says it's the Torque Converter and they want $1981 to replace it (labor included). Find all the details inside Circle Track Magazine. When the impeller is driven by the engine crankshaft, the fluid in the impeller rotates in the same direction. The torque converter shields the driveline from sudden torque shocks and vibration. Between Failing Torque Converters. Excessive Vibrations in Drive when holding down the brakes All this is in addition to a rough but stable idle when in park. • Improperly installing the torque converter can force the crank forward, damaging the engine thrust bearing. Quote; Share this post I am experiencing the same vibration issues and similar symptom after. How loud is this converter rattle? The noise I hear is noticeable driving down the road with the. Refer to Torque Converter Vibration Test in this procedure. Vibration - Flywheel? Converter? Harmonic balancer? This is a discussion on Vibration - Flywheel? Converter? Harmonic balancer? within the External Engine forums, part of the LSx Technical Help Section category; 2000 SS A4 1. The time it wasn't a tune up, it ended up being the switch on the brake pedal needing adjustment and somehow that was causing an issue. the torque converter could have been replaced for a lot of reasons like torque converter shutter, it not locking up which can happen without being abused but there is know telling, asked the seller to get a copy of the repair order from the dealership it will tell you what the concern was that caused them to replace it. • If the snapshot does not indicate a judder, this bulletin does not apply, continue with normal troubleshooting. Troubleshooting Torque Converter Clutch Cycling on Dodge Trucks connector 1, terminal 23 (Orange/Dark Blue wire). They only want to replace torque converter and front pump and all sealsfor 1400. Noise is not coming from as far back as the diff. So, if there is a counterweight on the torque converter, you can cut it off (or bend it back and forth with a hammer a few times, just get rid of it), and change out the harmonic balancer with a 318 unit. It serves several purposes, such as giving an engine the ability to idle as well as increasing an engine’s torque. When the torque converter clutch is not locked, it can serve as a viscous damper between the engine and rear drive tires. My VIN does NOT qualify for any service campaigns (including the one where 2015 Rogues had the torque converter replaced).