Torque Converter Clunking Noise

- Answered by a verified Chevy Mechanic. light knocking sound from the area of the torque converter. Torque converter shudder and diagnosis Many people describe this feeling as running over a rough spot in the road. Welcome to Performance Torque Converters! Please contact us at 256-383-6868 for questions or available options. Second one is different, probably transmission torque converter clutch??? HKS. The fourth time when the contact took the car to the dealership, they found that the origin of the noise was the torque converter. I have noticed a buzzing noise in the drivers side while driving. torque converter. Perform a stall test to check the torque converter's performance. Rear axle seal leaking : 6000 mi: Torque converter shudder and hunting returned so Torque converter was replaced with revised part number and revised fluid Shudder and hunting have not returned by 8000 miles. In drive or reverse it will make no noise sitting still. You do realize that the torque converter unlocks under certain conditions, right? When the torque converter is unlocked, it will seem like each gear is "slipping", especially when accelerating uphill in overdrive. They can run 100k plus miles doing this. When the clunk happens, it seems to be coming from either beneath the floorboard or from the rear of the car. Almost sounds like rod knock, but I just put the engine in and its been doing it since i first started it up. When you put the trans in neutral, the pump fills the converter, something it dosn't do in park and absorbs the shock of going into gear. The unique noise your power steering pump makes when something is wrong is due to its specific design. This gave some relief to noises that I thought might also be from clunking exhaust system or loose suspension. (as coming to a light etc. It sounds to me like your torque converter may be on the way out. Our technicians tell us this condition is commonly caused by a failed automatic transmission torque converter. AWD makes the car move, but not in RWD. Died transmission, torque converter or auto gear box. Ford Escape and Mazda Tribute Automatic Transmissions. " First, hold the torque converter horizontally and face down (bolt holes facing towards the ground) so that the fluid will not drain back out. With a typical automatic service the pan is dropped, the filter is changed, the pan put back on and the trans. I got a 2001 Chevrolet Cavalier Z24, and it's got a steady clunking sound thats get faster as the wheels turn faster. Clunking Noise In Drivetrain Only On Deceleration. Sounds like it's just normal. The torque converter will slide onto the input shaft three times, each time seating further into the bellhousing followed by a "clunk. A torque converter shudder is a brief shake or shudder in the vehicle when internal clutches apply inside the torque converter. If you can. This will make little to no noise at idle and make more noise depending on how much load the engine is under. This is a discussion on automatic transmission clunk on takeoff within the Automatic Transmission forums, part of the Drivetrain category; Is it normal that when I take off from a stand still, (Wot or normal) i should hear a clunk. Because high frequency TOSS oscillation indicates when the lash is removed from the driveline, the driveline clunk control of the present invention adaptively adjusts the lash removal phase of clunk events including, but not limited to hybrid auto-starts, transition from deceleration fuel cut-off, torque converter locking and transmission coast. I am now hearing a whining noise coming from where the transfer case is, right next to my shifter on the floor. 4 wheel drive. The thud/clunk occurs when the RPMs start to decrease, a brief moment after lifting off the gas. on any torque converter. Happens 75 percent of the time and in first, second and reverse. Record it and upload to youtube and link here. Hello CarTalk Community, I have an '05 Chrysler 300C AWD with approximately 65k miles. We’ll also give suggestions on what to do if your Nissan Note does have one of these issues. If you blip the throttle in park or neutral, you might hear a quick succession of knocks. Yeah, all the clunk/bang when you start-up or stop is coming from your hitch. Thanks for your question about your Dodge Ram, and we’re sorry it isn’t working right now. I had tranny replaced AND rear diff replaced 2 months after I bought my truck. Re: 2011 Cruze LS diagnosed as torque converter but repaired as coolant o-ring issue Sign In The residual coolant on the piece didn't bother me, it sort-of confirmed that it had indeed been leaking before it was repaired by the 3rd party shop. It happens when I go from zero torque on the drivetrain to a good amount of torque on the drivetrain. The 4K REV LIMIT is a new thing they just done about a month ago with the new transmission update!. This same noise can be caused by vacuum bubbles forming in the fluid as the pump starts to fail. The second thing is that the L35 truck converter has damping springs added to the TCC (Torque Converter Clutch) assembly. If the operator is not warned of an ABS or ESC malfunction and the ESC loses engine torque control, there would be an increased risk of a crash. That may explain the code difference in the third digit. To rule out obvious simple causes, check the fluid level in the transmission per the instructions in the owner’s manual (follow carefully; otherwise reading will be meaningless). If you shift gears and hear a clunking sound, then you definitely need to have it checked out by a professional [source: AAMCO]. That was when the timing chain diagnosis came down. Wrangler JK Steering Specs. Some customers may complain of bucking or jerking when firmly depressing the accelerator while in Tow/Haul mode. It turns out that the bushing are hard and not very rubber like causing a clunk in the front end. 4T DDCT and to answer you question it is normal! It is the tranny downshifting, since it's a dry clutch it performs more like a torque converter (if you understand how one of those performs). Does it feel like the truck just got kicked in the ass all the sudden? If so then yeah it's the transmission and how something in it is working. This happens also during acceleration. On occasion, I am feeling something in my drivetrain feel like it is slipping and then when it grabs I also hear a slight clunk. I google-searched symptoms for a couple of hours and nothing describes the type of sound I'm hearing. About a month ago I posted on my developing engine marbles (87 a/t 127k) - this rattling noise like loose nuts and bolts occurred mostly at shutdown but progressed so that it was present often at idle. It happens when I go from zero torque on the drivetrain to a good amount of torque on the drivetrain. Then just now it started doing it in park and neutral. This noise can happen at any speed between 25 to 70 mph , flat uphill or down. Loose torque converter bolts/nuts will create a knocking type sound at idle or when there’s no load applied. In general terms, late model lock up torque converters are pulse width modulated and not on and off like the ealier models were. I have problems with my 2009 Honda Accord coupe 2. Chevrolet Silverado 1999-2006: Common Noises Diagnostic. Abnormal slipage in 3 & 4 but nothing that seems like excessive or abnormal slip in 1 or 2. The torque converter turns while the transmission is in park and neutral, therefore, any noise from the torque converter will occur while the vehicle is in gear. Very often the problem is a torque converter shudder. • Regular “clunking” or loud “clicking” every few feet may indicate a broken ring or pinion gear tooth. These torque ocsillations should only occur in Tow/Haul because the torque converter is programmed to stay locked to provide engine braking in that mode. ) all per the findings from the tech. I took delivery of a 2016 Sierra Denali (5. I had a brand new one destroy its self on a test drive. Axle wrap would not explain the "rattle" sound. Torque Converter. motorcycle accelerating clunk, motorcycle clunk on and off throttle, motorcycle clunk on deceleration , on throttle off throttle transmission clunck noise victory cross cointry, victory cross country lash, victory gunner clang in drivetrain when acceleraing, victory high ball backlash, victory motorcycles what is the clunk. Is anyone saying that this clunk could be a torque converter or internal transmission problem? The reputation on the Odyssey transmission is not good. The noise happens when you go over bumps of all sizes and is worst when there is a lot of side to side rocking. I stood alongside the truck while one Tech started and stopped the truck. The torque converter will slide onto the input shaft three times, each time seating further into the bellhousing followed by a "clunk. I just rebuilt my c4 and put in a new torque converter. 2007 I was traveling on I70E and as I was getting back on the hwy. The C1 and C2 clutch reaction plates (steels) were revised in transmissions built November 5, 2014 or later to prevent this noise condition. Owners' Feedback - Taken from sources throughout the Internet. If the gears are engaging harshly and feature clunking or grinding sounds, then it is possible you have worn out gears and may need an entire transmission replacement. This would primarily occur when slowing down and the transmission was downshifting. Rotate the converter till you see the drain plug. There is a real loud knocking sound coming from what sounds like the torque converter or flywheel area. I think you're describing the torque converter when it is shifting gears. I google-searched symptoms for a couple of hours and nothing describes the type of sound I'm hearing. The radio would kp playing but the engines shuts down. This is only time it happens. I had a brand new one destroy its self on a test drive. 6L8 CS-CCV 6L45 6L50 6L80 6L90 corrects/reduces/prevents: Shift solenoid performance codes or false PO751 due to sticking or dragging clutch select valves; Low speed TCC ‘ chuggle ’ or cycling during cylinder deactivation (this complaint is often confused. The recall is expected to begin November 28, 2016. Ford Freestar and Mercury Monterey Owners and Lessees File Class Action Lawsuit Complaint Against Ford Motor Company Over An Alleged Defective Transmission and Torque Converter In Model Year 2004 and 2005 Ford Freestars and Mercury Montereys That Allegedly Can Cause Sudden Power Loss and Loss of Acceleration. Test 1: I tried to drive in sport mode, second gear, and the noise also happens when accelerating after coast. This clutch engages a lock in the torque converter to almost completely lock the "two fans" together so that they spin at the same speed and do not slip. A Ford tech's take on "THE CLUNK" (THE ONE and ONLY CLUNK THREAD) Discussion in 'Ford SVT Raptor General Discussions [GEN 1]' started by SOCOMech, Feb 15, 2011. Torque converter shudder in 4th while lockup is engaged; problem goes away when the brake pedal is pressed slightly to unlock converter. Perform a stall test to check the torque converter's performance. My 2011 xlt 4 l v6 sometimes makes a "whump, whump, whump" kind of noise when I first drive it after it has been sitting for a while. A shudder or vibration may develop while driving at speeds between 35 and 40 MPH. There is a solenoid in your GM converter that causes the the torque convertor clutch (TCC) to engage and disengage. I google-searched symptoms for a couple of hours and nothing describes the type of sound I'm hearing. The impact of the plates on the case is what results in snap or the clunk noise. What is more interesting that clunk is not happening when I am driving in S mode. A torque converter will make the most noise when the vehicle's in gear and the wheels are held stationary. Does it feel like the truck just got kicked in the ass all the sudden? If so then yeah it's the transmission and how something in it is working. Its a steady knocking sounds and is pretty loud. A bad torque converter could be the origin of rattling sound when accelerating at low speed. BMW E39 Links This page is dedicated to the E39 chassis 5-series BMW's (1997-2003). , told me that the clunking is normal because of the high pressure on the trans. Install the torque converter. once again when u expect to have an issue resolved they just blow it off as a normal characteristic of the truck. Also, Lubegard Shudder Fix will at least fix this for awhile. Even though Honda says it's "normal" its a bit disconcerting to hear any kind of noise from the front suspension area. Shutting the vehicle off for a short period of time and restarting may allow it to move again but only for a very short distance. Yes, I agree but this is a different kind of clunk, it sounds and feels different than a rearend clunk and seems to originate from somewhere under the cab or nearby. Axle wrap would not explain the "rattle" sound. OK, we have the TorqueFlite 8HP70 eight-speed automatic Description: adaptive electronic control, Sport mode or paddle-shifted driver-interactive manual control, five-clutch pack design with only two open clutches in any gear, off-center line pump with low-viscosity oil for reduced spin loss, torque converter lock with turbine torsional damper for low lock-up speeds in first through eighth gear. and that the growling noise i get from putting it into reverse that i have is from backlash. The torque converter used with an automatic transmission acts like a flywheel, smoothing out engine pulses. With legendary truck quality, excellent resale value, and solid all-around capabilities, the Toyota Tundra is a great full-size pickup truck. I stood alongside the truck while one Tech started and stopped the truck. I just bought the truck in January with 30,000 miles on it. !!!SOLVED!!! Loud clunk when stopping hard and accelerating after the clunk Recently at about 84K miles my 2004 2nd Gen Prius has started exhibiting a "clunk" sound coming from what sounds and feels like is the left side of the car. 4 wheel drive. If the starter makes a whining noise while spinning that can indicate a flexplate problem. the tranny locks up the torque converter for a brief time and allows for full on slapping when jockeying the gas. Ford C4 and C6 Transmission Trouble Shooting Guide It's good to have a source to guide you when you're struggling with troublesome transmission function. I think the noise is the torque converter , but i have never herd a torque converter. I stood alongside the truck while one Tech started and stopped the truck. In severe situations, the outer portion is completely separated. To learn more, see reviews below or submit. In The Manufacture Of The Torque Converter With Engine Noise Ranging From A Deep Howling To A Sound Like A. Joseph Greenwell, Chairman and Chief Executive Officer, of Jaguar UK on 15th April 2004, along with 7 other S-Type owners who also experienced this ZF gearbox lurch fault, to demand this issue be taken seriously (letter 71kb) and on 1st February 2005 to Ms. Have a shop verify line pressure, and provided no valves in the TCC hydraulic circuit are worn, replace the torque converter. One of the clutches is a lockup like in the torque converter of modern automatics. The unique noise your power steering pump makes when something is wrong is due to its specific design. The torque converter turns while the transmission is in park and neutral, therefore, any noise from the torque converter will occur while the vehicle is in gear. He doesn't think it's the gearbox. The tranny shifts fine while driving. I get another sensation/noise from being stopped on a slight hill and letting the truck roll backwards while in drive. Engineering is investigating ways to improve this symptom. The clunking starts when it moves and will clunk faster as the vehicle speed increases. 7Gi its pretty obnoxious sounding and I have NO idea what it. 4L6-CCV 4L60E Converter Conversion Valve for use with non lockup torque converter. Not quite so loud, but you get the idea. It went from great to. high stall torque converter and mark 8 drive shaft, kooks 3/4 lenth headers and xcal2 shifted 2-1 i started hearin a. My 14 Silverado 5. It feels as if it might be coming from the middle of the front end, like from the differential or something. When the engine is idling, such as at a stop light, the amount of torque going through the torque converter is small, but still enough to require some pressure on the brake pedal to stop the car from creeping. It happens more often in warmer weather. I got a 2001 Chevrolet Cavalier Z24, and it's got a steady clunking sound thats get faster as the wheels turn faster. The image below shows a pilot bushing that is NOT going to interfere with the converter, as the bushing is below the area occupied by the converter. About Lemon Law Blog Contact Chevrolet Equinox / Terrain Rattle Nissan CVT Problems Contact Us Lemon Law Blog Contact Chevrolet Equinox / Terrain Rattle Nissan CVT Problems Contact Us. It turns out that 1 of the pinion gears failed from not being heat treated properly. 2015 HONDA ACCORD Recalls (2) complaint of front suspension noise, such as popping squeaking, clunking, or creaking. It will be a faint sound when the car is idling in ‘park’ mode, but the volume and frequency will increase in proportion to acceleration. The torque converter was seated correctly and the pump does not sound busted (thank god) I say this because when it drove, it drove perfect. ) when downshifting (automatic trans) Same can be heard when you are cruising along and then step on the gas alittle harder and get the clunk sound and when you take your foot quickly off the accelerator. I had a brand new one destroy its self on a test drive. Apologies if I missed something. In my previous manual I would get a sound when going into reverse. My flush didn't work and I am back at the dealer for a 3rd time waiting for GM to either swap the trans or torque converter. o/d light flashing. Any other guesses, or has anybody actually seen this before?. Discuss '99 CR-V Front End Clunking Noise. Ford C4 and C6 Transmission Trouble Shooting Guide It’s good to have a source to guide you when you’re struggling with troublesome transmission function. This same noise can be caused by vacuum bubbles forming in the fluid as the pump starts to fail. If there is a problem causing it to malfunction then there are some symptoms that your car will exhibit. It improves the ratio by approximately 3:1 and can turn larger tires and drive at slower speeds without doing any damage to the clutch system. I get the clunk (and car shudders) when driving at highway speed and need to pass someone quickly. The sound is like a grinding-metallic sound. There was a clunk noise. This noise can happen at any speed between 25 to 70 mph , flat uphill or down. Took the replacement transmission and slide the torque converter onto the splines. If you can. This may be a result of a damaged torque converter clutch (TCC) solenoid valve. This happens usually when the car hasn't been used in a few days. If you experience a grinding sound in your Audi, take it to a repair shop to have your torque converter examined immediately. Quickly Diagnose Steering & Suspension Clunking Noise in your Car. I google-searched symptoms for a couple of hours and nothing describes the type of sound I'm hearing. Question: I took my Ford Ranger to the dealer for a clunking noise and a jerking motion several months after buying it in 1985. honda forum at Car Dealer Forums; 1999 CR-V, 93k, has a clunking-like noise from front end when going over bumps, etc. It happens the first time before shifting out of first gear and doesn't make it again untill I turn it off and let it sit a while. I first noticed it after driving in the mountains and on some dirt roads. I'm thinking the torque converter flexplate nuts are loose. Search Fixya The Torque Converter lock-up can be worn. There is a a sound like a rock rolling around inside the tq or somewhere toward the front of. Maybe the torque converter once it starts spinning?. Install the torque converter. The thud/clunk occurs when the RPMs start to decrease, a brief moment after lifting off the gas. I decided the other day I was going to drive it and now it is making a loud clicking noise around the the torque converter. Sonnax Transmission parts for Ford E4OD applications. There was a clunk noise. If I were to start the car right now and drive away it would not make the noise. I just rebuilt my c4 and put in a new torque converter. This transmission will need an overhaul to fix this problem. As you accelerate the noise and vibration can be felt almost like a bearing noise which will eventually cause a lockup or failure possibly resulting in injuries to any drivers or pedestrians. Now is it possible to access these drain plugs while the torque converter is bolted up to the flex plate? Would they be sufficient to drain out some of the debris? Also when I have the car in neutral, and there is no pressure to the torque converter, there is a clunking noise that arises, any insight about this? Thanks again. One common trigger for major auto repairs is transmission problems. Hi all, I have the following symptom, while cruising at a constant speed (either with foot or cruise control) I get the floating rev needle. You can be methodical and cover all the bases during a rebuild and still things can go wrong. See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. the torque converter thing sounds right cuz thats about where the noise comes from. I've had my car checked and I was told by the shop that I needed new engine mounts and a new trans mount to stop the clunk and jerking. Optimal transmission shifting, durability and performance are yours when you repair your vehicle with our OE quality solenoids, sensors, switches & control units. I get another sensation/noise from being stopped on a slight hill and letting the truck roll backwards while in drive. It will be a faint sound when the car is idling in 'park' mode, but the volume and frequency will increase in proportion to acceleration. I finally determined that the right side dog that holds the hitch in place on the slider was somehow lifting causing the right side to pivot and cause the noise. Chevy replaced and another 12 days later had to repair again due to a bad seal in the converter. Took the replacement transmission and slide the torque converter onto the splines. It's definitely the torque converter. Vibration or harshness at highway speed, a clicking sound whenever the vehicle is moving either forward or in reverse, a clunking sound when changing gears. Here are the most Common complaints about the RAV4. When you shift your car into drive, neutral, or reverse, if you're hearing loud clunking noises, it's possible the torque converter is the root of the trouble. Some trucks build between 1-1-01 to 5-1-02 may exhibit a flashing OD light and possibly harsh shifting, with any or all of the following trouble codes: P0740, P0741, P0743, P1744. This clutch engages a lock in the torque converter to almost completely lock the "two fans" together so that they spin at the same speed and do not slip. The place I had the tranny rebuilt said they replaced the converter. I was thinking that i needed a torque converter from some research ive done. Very often the problem is a torque converter shudder. - After replacement or rebuild of internal transmission components or the torque converter - If one or more of the clutch volumes indexes (CVI's) contain skewed readings because of abnormal conditions. but here's the million dollar question: Are you parked on a slight incline when you shift into reverse? My driveway had a slight incline to it and the AT would make a clunking noise every time I shifted into reverse (or even drive if facing forward). use a 3/8" wrench attached to a torque converter dust-cover hole using a dust-cover bolt. By cycyling the telescoping shafts under torque you are using the balls to spread the remaining grease back across the shaft including the sections that you use the most. After reading, you will know how a torque converter works, symptoms of a bad torque converter, and its average replacement cost. Perform a stall test to check the torque converter's performance. About a million years ago I was involved in a trans swap. I was told this is normal. I changed my fluid some time ago and it looked fine, no metal. A local Volvo/Saab specialty shop suggested the the torque converter seal as the cause of the leak. I get the clunk (and car shudders) when driving at highway speed and need to pass someone quickly. So it only appears to clunk under load. It does this at speeds from 20-60 mph. If you hear a loud clunk, or feel a chassis shudder, this could indicate that the torque converter mounts have disconnected or broken. 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. On occasion, I am feeling something in my drivetrain feel like it is slipping and then when it grabs I also hear a slight clunk. Is anyone saying that this clunk could be a torque converter or internal transmission problem? The reputation on the Odyssey transmission is not good. The 4L60E transmission weighs 146 pounds dry, and 162 wet. I took delivery of a 2016 Sierra Denali (5. maybe a torque converter. " First, hold the torque converter horizontally and face down (bolt holes facing towards the ground) so that the fluid will not drain back out. It turns out that the bushing are hard and not very rubber like causing a clunk in the front end. Joseph Greenwell, Chairman and Chief Executive Officer, of Jaguar UK on 15th April 2004, along with 7 other S-Type owners who also experienced this ZF gearbox lurch fault, to demand this issue be taken seriously (letter 71kb) and on 1st February 2005 to Ms. Have taken it to dealer for a clunking noise in the drive line. It seemed to get worse the more miles I drove. During a 2-3 upshift, the 2-4 band is released and the 3-4 clutch is applied. Answer B is correct. They agreed that it was likely to be the torque converter. Dt: the contact owns a 2003 ford explorer. Torque Converter Diagnosis. Sprinter-Forum > NCV3 Sprinters > NCV3 4x4 Talk > 4x4 - Do you clunk? PDA. The only time I notice the jerking is when I'm not towing, the torque converter is locked up and I goof around with the throttle. Sometimes happens when coming to a stop. Plus, the clunking is definitely coming from the center of the vehicle. Sometimes it will not even move backwards when I put it into reverse. I took delivery of a 2016 Sierra Denali (5. In drive or reverse it will make no noise sitting still. Aisin officials declined to comment, referring interview requests to. The second thing is that the L35 truck converter has damping springs added to the TCC (Torque Converter Clutch) assembly. It does this at speeds from 20-60 mph. Always happens at about 1500 rpms, let off gas coast, go back on gas and CLUNK. Also, Lubegard Shudder Fix will at least fix this for awhile. A torque converter is a coupling that relies on a fluid hydrodynamic to allow the engine to spin independently of the transmission. The converter clutch is electronically controlled in this transmission. The drive is much improved now :) They charged $615 for parts include the converter and transmission oil, and $770 for 6. A torque converter is a type of fluid coupling, which allows the engine to spin somewhat independently of the transmission. it never worried me cuz even if i let off the gas and hit it kinda hard the clunking never got any louder or anything. ) Torque converters are why you don't have to select neutral gear when you are coming to a stop. The noise does not get any louder when you rev the motor, however it does get faster as the RPMs increase. Discover everything you need to know on transmission troubleshooting and diagnosis, along with torque converter, cv joint and wheel bearing. If the torque converter has an internal fault you could experience poor acceleration along with noise. I decided the other day I was going to drive it and now it is making a loud clicking noise around the the torque converter. The drive is much improved now :) They charged $615 for parts include the converter and transmission oil, and $770 for 6. What you are supposed to know about your ZF6HP26, 6HP19, 6HP28 and similar ford Transmissions. Clunk coming from torque converter or somewhere at front of tranny. $1500 to change it out. He only referred to it as a "converter" instead of a "torque converter". Most of the time it is a stuck Torque Converter Clutch (TCC) solenoid, but this is not the only cause of this problem. Clunk from transmission when shifting into forward or reverse; reports to RTML are that the transmission must be rebuilt if customer complains; Shifter noise and/or rattle - loose knob retainer nut Pry out the plastic gear shift diagram. There was a clunk noise. That may explain the code difference in the third digit. Transmission shifts fine but I am hearing a clunking in every gear. its done it as long as i can remember and im just over 38,000 miles. Clunking noise slowing down. Thinking low battery might somehow play a role I jump started from another car during starting to add extra amps, still bad noise during start. I wasnt real happy about that, then when I notice this clunk, that your speaking of and the hill thing I was ready to light it on fire!. I can hear the noise and feel the grinding in my foot. That was when the timing chain diagnosis came down. It's a real loud noise and sounds like it shouldn't be driven anywhere. Fix was a 3X flush with new part number GM HP Dex fluid. Within a week the torque converter needed to be replaced. From a rest stop just East of indianaplois, in. Raise the rpm slightly over idle. 3 has 28,000 miles on it now (got it at 26,000) and since then there has been a strange humming or whining noise coming from what I deduce must be the torque converter. Engineering is investigating ways to improve this symptom. If you don’t get converter clutch lockup, there may not be power to the. I assume it's the tc, it makes a little clunk type sound as r's go from 1200 to 1500 and back. Hello CarTalk Community, I have an '05 Chrysler 300C AWD with approximately 65k miles. When this starts to wear, it begins to make a “whirring” sound. Whether this means the transmission needs to be serviced, rebuilt or replaced may depend on how long the car has been driven with transmission issues, and how much damage has been done. With a typical automatic service the pan is dropped, the filter is changed, the pan put back on and the trans. When a flex plate fails it usually cracks at the crankshaft mounting bolts. You wouldn;t think it's something like a torque converter going bad, or loose flexplate or the likes would you? Outside of that noise the hifting works great, and engine is tip top. Clunk coming from torque converter or somewhere at front of tranny. I am however, able to simulate this clunking noise when the engine is idling in Neutral and is shifted directly into Park. I also have the 1. Goes away quickly. Sometimes it will not even move backwards when I put it into reverse. rear end clunking noise. With this said , some members will try a fix without a proper diagnosis and end up with the same clunk after they attempted to fix it Listed below is 4 of the most common. This transmission will need an overhaul to fix this problem. I had tranny replaced AND rear diff replaced 2 months after I bought my truck. Runs great but when you first turn over the ignition there is a thump or clunk sound and when you shut it off it does the same thing. well, without hearing the noise myself, i could guess that the torque converter clutch might be going bad. But now it shifts funny and when i take off about 10 ft it makes a hitting sound our clunk sound as if the tourque converter is going out. Whistling noise from transmission: Teflon wore off your pump bushing. I asked if the car was an auto because sometimes our torque converters break. The radio would kp playing but the engines shuts down. I started hearing a clunking noise coming from the right passenger dash area when going over larger bumps on the right side of the car. No apparent abnormal tyre wear and car drives normally with no vibration or pulling either way. I also have the 1. I have problems with my 2009 Honda Accord coupe 2. When I hit accelerator it sort of holds back and then dowshifts with a loud noise and vibration to the car. 2015 HONDA ACCORD Recalls (2) complaint of front suspension noise, such as popping squeaking, clunking, or creaking. Going from reverse to park, it makes a loud screeching sound. How to fix power steering pump noise. The sound is like a grinding-metallic sound. It's tough to say for sure, there a two things being described here: 1) a "clunk" noise at low speeds, 2) what I call the CVT "surge" as the torque converter locks up early under light acceleration as harryg described - this casuses the car to shutter or "buck" for a few seconds as you accelerate, but I've never had any odd noises accompany the shutter/surge/bucking. If I come to a "slow" stop for the first few stops on a cold morning I won't get the clunk but if I come to a quicker (more normal) stop I'll get the downshift clunk the first stop or two. Place your foot on the brake with the engine in neutral and idling. I get the clunk (and car shudders) when driving at highway speed and need to pass someone quickly. If there is no grade and it's very level, it will hit 5th and lock up the torque converter. I have a feeling if I would have done this at the first hint of clunking, I could have rid of the noise 100%. What do you think? Torque converter bearing? 700R4 with 9. My 14 Silverado 5. Some customers may complain of bucking or jerking when firmly depressing the accelerator while in Tow/Haul mode. For a variety of reasons (torque converter solenoid, worn valves, worn converter) the converter fails and begins contaminating the oil with debris. Chevy replaced and another 12 days later had to repair again due to a bad seal in the converter. They will cover the fix and reimburse those who already paid for the fix. A properly working torque converter is something your car’s transmission needs to function. There is a real loud knocking sound coming from what sounds like the torque converter or flywheel area. Quickly Diagnose Steering & Suspension Clunking Noise in your Car.