The car has the NISMO coil-overs and catback (and various other NISMO bits here and there under the hood), installed by the previous owner. It is also helpful to figure out when the sound occurs. Mechanic recently checked the differential fluid levels and are fine. I suspect its the rear LSD doing its job. Is this normal and should it be doing this all the time even when already moving, stopping at a junction and moving off again?. It doesn't happen every time, but very often; especially under hard(ish) acceleration off the line. If the noise still persists, then the problem lies somewhere in the drivetrain or transmission. Something made me google "clunking noise in BMW X3" and OMG!!!! Just look what I found!!!. I never heard that noise before, so I am at a loss as to what it might be. Thanks for the tips. Came back absolutely fine so I drove it until recently, constantly cursing the noise and wondering what the heck it could be! In January of this year we were buying a car for our son and were googling reviews of different little used cars. I have noticed a clunking noise after I accelerate and lay off the gas also when decelerating then letting off the gas. When I accelerate and let of really quickly it almost sounds like something is rocking back and forth. I don't think this is the case, as it occured 50k miles ago (less harshly) with my original shocks that have since been replaced. Front end clunking sound over bumps? 1997 Toyota Camry - 240,000kms Had this clunking noise from both sides on the front of my car since I bought it in September (at 200,000kms). Dealing With a Squeal While You Accelerate (Belts) The car is going to squeal when you turn it on because the belt is either worn or loose, and if the fan belts happen to be worn you’re probably going to need to look at the timing belt as well. About three weeks after owning the car I started to hear the clunk while decelerating and accelerating at low speeds. This noise most often happens when you first begin to accelerate, and sometimes when turning. If the sound is coming from the rear and it gets quitter when turning right we would guess the problem is with your left rear wheel bearing. Your car has enough battery power to start the car, the problem remains is your gas supply line, your fuel pump did not pump enough gas supply. Just after I brought my 2006 X3 2. Clunking/Lurching when accelerating? I own a Mitsubishi Verada(1991) with 190,000 km on it, and it has been serviced regularly for its whole life. Sounded like a bowling ball hitting the carpeted back of the trunk of a car. hello all, my panda has a clunking/clicking noise coming from the rear, very noticeable at low speeds and over speed bumps, any ideas what it may be? Technical: clunking sound from rear of car - The FIAT Forum. The noise from the engine may change in pitch or start to sound like whining. Most recently when this occured I even went back to intersection to verify there was nothing unusual about the road surface, and it sort of made a "double-clunk" sound that time. To diagnose this problem, drive the vehicle in a circle (2-3 MPH) with the wheel turned all the way left or right. Obviously nothing was there. clunking noise when taking foot off brake, Clunk noise when taking foot of brake, clunking sound when braking vectra c www. I was very happy with my new car until I noticed a slight clunk/knock sound when I accelerated or took my foot of the accelerator pedal during stop and go driving. Hey guys, As some of you will know, i've been battling these clicking axles for a while. I never heard that noise before, so I am at a loss as to what it might be. That lasted about 1k miles. I do have one issue that that Id like to know if other drivers are experiencing. Clunking sound coming from the rear end of my STi. note: you don't need to remove the whole sway bar -- the rubber bushings can be removed by themselves. Every time I accelerate really fast and let off the gas there's a clunking noise on the right side front end. CarComplaints. I don't hear it during the first few minutes/hours of driving and it occurs almost only during my drive home while traversing medium-heavy traffic (think Dubai-Sharjah on E311 at 5:30pm on a Sunday). But accelerate away from a stop, or brake (quickly or very slowly), or turn left or right, and more often than not, we get the clunk. Hear it while coming to a stop and initial acceleration. And when I was parking in reverse it was even worse along with the noise it almost felt like it was stuck then went after making this loud Clunking noise. Up to about 30mph, and under harder acceleration, the noise is not present. After a couple days I emptied out the back of the car and it continued. I think it is coming from the driver's side, but it I could be wrong. I park my car on my driveway (slope). I pulled the tire, and there is no shield scraping nor is anything loose. Every time, the sound disappears when we drive it home, and then…it comes back. I can't imagine that the thousands of Odyssey drivers out there would find a clunk noise acceptable. Major mysterious clunking noise under acceleration This is a discussion on Major mysterious clunking noise under acceleration within the General Help forums, part of the LSx Technical Help Section category; Help! I just looked at a really nice '95 Z convertible (I know --not an LS-1, but please bear with. Brake Making Noise. Honda Accord: Why is My Suspension Clunking? A clunking suspension system indicates a variety of mechanical problems in your Honda Accord. We just bought our Suburban today. It makes the sound (really loud) mostly when you are turning while reversing, but can also be heard when making U-turns and going over speed bumps. Ive developed a quite loud knock or clunk when taking off or accelerating abruptly in 1st, 2nd and even 3rd at times. Annoying noise coming from rear of your Element? I switched the rubber bushings on the sway bar and the clunking noise is now gone. Noise and vibration seem to be under driver's feet. Great car - except the rear suspesion noise. There's just no slop! Somebody explain more. It happens only occasionally, specifically when I start to brake, accelerate or sometimes when I let go of the gas. There is nothing in the glove compartment or other items in the car when producing this noise. 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. CarComplaints. i have noticed the last couple of days, when i am stopped and accelerate from a stop, there is a clunking noise coming from the rear wheels of my carim pretty sure its not motor mounts, and have a feeling that its my differential slowly goingwhat are some symptoms of problems to look out for?. Sure enough, it was the transfer case. No noise when turning left. It is not the driveshaft clunking (I've lubed the d-shaft and fixed that) it is when you step on the gas and the weight transfers to the rear of the LC, I hear/feel a clunk. Upon acceleration after coasting â€" very similar symptoms as back lash. This was replaced today. The car is a constant AWD and it's a 4-speed tiptronic auto (we always have it in D though). Has anyone experienced the same thing, and what is the problem / cost to fix. If your SRX is a front wheel drive model then most of the time this is caused by a failing engine or transmission mount. Any ideas of where the clunk noise is coming from the rear, or how to find out? It makes the noise when turning slowly like in parking lot, or going over speed bumps. Learn about this problem, why it occurs, and how to fix it. It makes the sound (really loud) mostly when you are turning while reversing, but can also be heard when making U-turns and going over speed bumps. The sound is like clunk in the rear from the driver side (LR). But as soon as I push in the clutch or put it in neutral, it almost goes away. The noise is a lot less when the A/C is off. Now it sounds like something is grinding when I'm cruising at around 30-50 mph, get a clunk when the tranny downshifts or if I accelerate and let off the gas pedal. Hey all, just alately whilst driving when I brake I've noticed a loud clunk/knock it does not alter anythin on the car the noise is just very annoying and embarrassing! Ive had it to the garage today and they say they can't visually see anything wrong,. When the belt no longer moves smoothly along the pulleys, it makes a noise when the car is accelerating. The "clunk" sounds like someone hitting a piece of metal with a hammer. seen in Truck Trend. It only clunks once when I initially start moving and it seems louder after hard stops. I have also noticed a new sound (just got warm enough to drive with the windows down recently). Transmission clunk when accelerating. I recently had work done to the van including front Wheel hub bearings,brakes,rotors,and transmission fluid change. I dropped the shaft, replaced front and rear and now squeals, grinding, and clunks are gone. A tell-tale sign that this bushing is no longer performing as intended is hearing a clunking noise or feeling a jolt under acceleration or when shifting gears from drive to reverse. Replacing the wheel bearings should stop the noise. Rear U-Joint was trash, although it was not externally noticeable. This has happened a handful of times over the last couple of days (I avoid doing it if I can). I recently bought a 1996 Chevy Suburban 1500 4x4 with 18K on it, and it is one of the best vehicles I've ever had! When I let off the accelerator at low speeds (10-20mph) and coast, and then apply the throttle, there is a clunking noise from the limited slip differential. It is not a repetitive clunk-clunk-clunk type noise. Front end clunking sound over bumps? 1997 Toyota Camry - 240,000kms Had this clunking noise from both sides on the front of my car since I bought it in September (at 200,000kms). When I'm at a dead stop or just barely moving, something makes a clunking noise in the rear end of the car. It just about always seems to be 3 clunks, one right after the other. The shaking is not noticing until about 40 mph and grows in intensi. It is a 2014 limited with 80k miles, If I am stopped and accelerate slow there is no noise. Just the one at $25. I know it is not the drive shaft. Re: 2006 Uplander w/heavy clunk in rear passenger These are the kind of things that we deal with every day and it's not rocket science to find the noise if it is load and consistent enough. The noise goes away when hitting the brake or gas. If your car is shifting for no apparent reason and your engine starts making a whining noise, you may have problems with a slipping transmission. Re: 2006 Uplander w/heavy clunk in rear passenger These are the kind of things that we deal with every day and it's not rocket science to find the noise if it is load and consistent enough. I got under the car , but there inset anything. I have been getting a decent clunk sound that i can feel threw the peddle when coming to a stop. Breaking hard, driving normally or accelerating doesn't cause this either. Bought it in Germany, I live in Bosnia, Europe. making it so that the top bolt is slack, allowing it to move and hammer at the bodywork where it's fitted. Hear it while coming to a stop and initial acceleration. Transmission repair typically requires a specially trained mechanic and several thousands of dollars. The used car dealer she bought it from said both rear struts were replaced. A damaged parking pawl can cause this clunking sound that you've described. Engine knocking, car rattling, and brake grinding all mean bad news for car owners. Both rear hubs/drive shafts were replaced to fix that issue. It does it when I first start driving, but after I've been on the road for a while the sound usually goes away. It is both right and left as well as straight forward. The 2010 Ford F-150 has 9 problems reported for clunk when accelerating. Hi, not sure if you guys experienced this, at low speed over a speed hump on getting out of the driveway there is a clunking noise coming from under the car passenger side. It is also helpful to figure out when the sound occurs. Related Articles. Breaking hard, driving normally or accelerating doesn't cause this either. Beautiful and smooth. A humming, grinding or hissing car noise can end up costing you. Could any of these repairs be linked the clunking noise?thank you. It's as though there is a backlash in a linkage or something. Drive shaft noises and possible causes are as follows: Grinding and squeaking from the drive shaft is frequently caused by worn universal joints. The noise keep coming as long as I keep foot on and maintaining the same speed at 25 mph or higher. Addnl service: My acceleration whine was noticably. Hi we have just returned from a holiday in our motorhome, but on the return journey the engine started to make some clunking noises when accelerating & decelerating. Any clue? 2018 automatic with 1200 miles. Everything is tight concerning front and rear suspension. The noise is not coming from the engine, it's coming from the middle/rear of the car. If it particularly happens when you accelerate the engine, you can pin down the problems on common failures of several components. It has recently started to make a single knock or clunk sound when I accelerate and brake. Drain and refill the rear differential fluid using the procedure listed below. Noises While Accelerating. It sounds like it's coming from just in front of the firewall, but when I look under there, everything is tight, nothing's out of place, tie rods aren't loose, motor mounts seem okay (not even sure if that's related, but could be) and I can't find any cracks or broken welds in the body. It seems like it's coming from the rear end, but I have no idea what it might be. The 2010 Ford F-150 has 9 problems reported for clunk when accelerating. Hey guys, As some of you will know, i've been battling these clicking axles for a while. For example, from a stop I go WOT to 40MPH, then take my foot off the gas and coast. Rear U-Joint was trash, although it was not externally noticeable. Hi everyone, I just bought a new 2017 Altima 3. A tell-tale sign that this bushing is no longer performing as intended is hearing a clunking noise or feeling a jolt under acceleration or when shifting gears from drive to reverse. I have been hearing a clunking noise in the front end while accelerating and engine braking. Do you think these items would also cause the clunking/rumbling sound coming from (what it sounds like from the inside) the front end?. I have been getting a decent clunk sound that i can feel threw the peddle when coming to a stop. Early last fall I started getting a clunk when I would accelerate hard or brake really hard. Pulled over and shifted into park another loud clunk from the rear, shift to reverse same issue and to drive same issue. It does not seem to be affecting how the car drives at all either. Clunking Noise When Accelerating - posted in Technical Section For MK1 & MK2: When I accelerate I always get a clunking noise from the front end of the car. If you have a loose wheel bearing or hub, your wheel is flopping side to side instead of moving true in the direction you have steered your car. knocking noise from rear when accelerating. Metallic pop heard during braking and acceleration 2. I'll bet it's a bit of both. cant seem to figure it out. This noise was heard easily when I drove at slow speed e. Following that thread as my Pajero also has this clunk sound (more like 'tok') upon accelerating in traffic. Never checked - Answered by a verified Cadillac Mechanic. Noise and vibration seem to be under driver's feet. A 2009 Cooper non-s with about 35k miles on the clock. The clunk the shop mentioned near the torsion bar is probably another noise that's been going on probably since I had the torsion bar tightened. The clunk sounds like it's coming from the area of the rear differential. I have had my RX400h for about a month now and enjoy it very much. Sounds like its coming from drivers side. The sound can be heard in any gear and neutral, and sounds more like a sharp "metal-on-metal" scraping sound at very slow speeds. But there are some car noises you don't want to hear, because they can signal trouble. But as soon as I push in the clutch or put it in neutral, it almost goes away. The clunking occurs at the rear of the car has about the same sound as the known issue with the shocks bottoming out but also consists of a physical clunk you can feel in the car. The factory cart bushing are a bit soft and tend to harden with time. Clunking noise when accelerating '04 Subaru Legacy was created by CaptainGlac1er The head gasket in my Subaru has to be replaced which is $1800 and I have invested about $2000 already in this car over the past year but I also have this clunking which makes me think I should invest in another car. Learn about this problem, why it occurs, and how to fix it. Came back absolutely fine so I drove it until recently, constantly cursing the noise and wondering what the heck it could be! In January of this year we were buying a car for our son and were googling reviews of different little used cars. The sound can be heard in any gear and neutral, and sounds more like a sharp "metal-on-metal" scraping sound at very slow speeds. Finally decide it had to be the transfer case. Of course, when I left, the noise was back. I have been hearing a clunking noise in the front end while accelerating and engine braking. You may have to register before you can post: click the register link above to proceed. $30 for both and it was a DIY job. Hi all, Just bought my first Mini. If you can. Quite often when I attempt to accelerate, something makes makes a clunking/thunking noise and the car doesn't accelerate as I would expect. Lexus GX470 Clunk Type Noise From Rear of Vehicle When Stopping - 85 reports. Acceleration from standstill in normal traffic results in a clunk which seems to come from rear end. I also hear a different noise when you accelerate while turning, this one is more of a rapid clicking coming from the t-case. It seems to happen when the wheel hits center going from left to right or vice versa. Hear it while coming to a stop and initial acceleration. Clunking noise in rear when accelerating exhaust possibly,or radius arm bushes,call a mobile mechanic for a hands on look at problem this sort of thing is nigh on impossible to diagnose from a description. It could also be things like transmission mounts or engine mounts, but I've had enough U-Joints go bad over the years and exhibit that exact same type of. But when it changes to the last gear I can drive back to normal. 00 in parts. with 194k miles. The common cause of wheel drive shaft inner joint damage is the loss of lubricating grease and/or the presence of foreign material and contaminates in the joint. Thanks for the tips. Going over the same sized bumps on the left side of the car does not produce the noise. If your car makes noise when accelerating or turning, don't ignore it. When the belt no longer moves smoothly along the pulleys, it makes a noise when the car is accelerating. Car makes a clunking noise when accelerating. ? I drive an 04 Hyundai Elantra and lately when I drive my car it makes this clunking noise when I accelerate. 06-04-12 06:39 AM - Post# 2233208 I am noticing a clunk somewhere in my drivetrain on my 03 Suburban. Thought was something under the seat or back seat but I reckon its coming from under the car. Spark plugs may be dirty or worn. Listen for the clunking noise. I have seen lot of you have the same problem but does actually someone has found a fix to it ? My local dealer is not really serious and say it’s normal. Driveline slack is mostly it. What could be causing this. Clunk and metal scraping noise on accelerating from stationary position I have a 2001 Volvo XC70 automatic. I've done all of the tranny/diff service and have the MAXCARE warranty. Why would a car make a somewhat loud 'clunk' noise when accelerating from a stop? if the car is rear wheel drive, sounds like a u-joint. Clunking noise in rear when accelerating exhaust possibly,or radius arm bushes,call a mobile mechanic for a hands on look at problem this sort of thing is nigh on impossible to diagnose from a description. I pulled the tire, and there is no shield scraping nor is anything loose. I put the car on jack stands to see if i could replicate the sound and I could not with car in the air. It sounds as if it is coming from underneath the engine area and is a "clunk" sound with one jerking sensation. Major mysterious clunking noise under acceleration This is a discussion on Major mysterious clunking noise under acceleration within the General Help forums, part of the LSx Technical Help Section category; Help! I just looked at a really nice '95 Z convertible (I know --not an LS-1, but please bear with. Sure enough, it was the transfer case. It got a whole suspension rebuild aboout 15kmiles ago. 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. I suspect its the rear LSD doing its job. Clunking noise when accelerating in drive 3 Answers. It doesn't happen every time, but very often; especially under hard(ish) acceleration off the line. The first step to determining what is causing the sound is to isolate where the sound is coming from. Above 30-35mph car was shaking like driving on flat tires. Noise happens when accelerating from a stop or very slow, up through about the fifteen to thirty mph range. Clunk from motor when going slowing down and accelerating + whining noise at 65+mph Submitted by ElectricZo on September 19, 2013 I have been noticing a 'clunk' feeling/noise when transitioning between slowing down and speeding up. Clunking Noise When Accelerating - posted in Technical Section For MK1 & MK2: When I accelerate I always get a clunking noise from the front end of the car. My thoughts are: 1. However, worn out wheel bearings can lead to friction, causing grinding noise while turning the car on bends. The same kind of noise can also be produced by excessive backlash in differential gears. There's a clunk sound in the drivetrain when going from coasting to accelerating (or vice versa) at low speed. As stated on other threads/sites, this noise is (apparently) the ABS doing some kind of test when the car reaches 12mph, it just happens that I normally change into 2nd at about 10mph so I hear it just after lifting changing gear. I do have one issue that that Id like to know if other drivers are experiencing. These common car noises can spell trouble and cost a lot of. This noise persists when the car is accelerating. After I take it back to these clowns my next stop will be a shop someone recommended to me in Brooklyn. I pulled the tire, and there is no shield scraping nor is anything loose. If the noise occured right as I shifted gears I could see this as normal, but the noise doesn't happen until the car is moving fwd for a few feet. Had this problem before and it turned out to be a cracked transmission mount, so I've ruled that out as it is the first thing I checked. Honda Accord: Why is My Suspension Clunking? A clunking suspension system indicates a variety of mechanical problems in your Honda Accord. Sometimes it causes the car to pull back, almost like a transmission kick or a backfire. That might explain the clunking noise when I accelerate at low speeds (when there is more force and momentum on the engine). It's not very loud, but noticeable, and happens more when the engine. Now I normally have a soft growl coming from the back of my car. It doesn't happen every single time, but it happens very very often. It's like there's this hesitation in the transmission and when it engages, it makes the noise. The noise keep coming as long as I keep foot on and maintaining the same speed at 25 mph or higher. I really don't understand how it could help because the driveshaft isn't moving back and forth. I have been hearing a clunking noise in the front end while accelerating and engine braking. Sort of a clunking noise on front driver side wheel. Your car can vibrate, shake, and create various types of noises for different reasons. If it is front wheel drive, sounds like a cv joint. A 2009 Cooper non-s with about 35k miles on the clock. SUV is vibrating when I accelerate really hard from 0 to 30 gas pedal and steering wheel shakes, if I drive slowly nothing happens even when it's on idle. 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. I have seen lot of you have the same problem but does actually someone has found a fix to it ? My local dealer is not really serious and say it's normal. But here is a common reason for rear end noise on 1968 to 1991 Mercedes. This car has a lot of torque and when lets say in 2nd or 3rd gear I am coasting at 3-4K RPM, and then I hit the gas with anything more than 1/6th throttle the car will start to jump forward and accelerate hard. I do not think it is the struts, because the car does not bottom out or ride rough, but maybe the. I looked at the rear struts,look like they came off another vehicle,used. It is in very very good shape, paint, interior, engine all runs good, but it does has 130,000 miles. 06-04-12 06:39 AM - Post# 2233208 I am noticing a clunk somewhere in my drivetrain on my 03 Suburban. Metallic pop heard during braking and acceleration 2. How to Troubleshoot a Car That Makes Clunking Noises Over Bumps. Pulled over and shifted into park another loud clunk from the rear, shift to reverse same issue and to drive same issue. i have this loud clunk coming from my rear end. I just put new brake pads all around and replaced the rotors on the front. I've noticed an odd aspect to our 2015 Ford Mustang GT's manual transmission. But accelerate away from a stop, or brake (quickly or very slowly), or turn left or right, and more often than not, we get the clunk. It only happens after braking at a stop then taking off. The "clicking" is a different sound - it's very loud and happens when driving straight down the road with the wheel speed. Addnl service: My acceleration whine was noticably. If the car makes loud clunking noises over bumps or potholes, and the exhaust checks out, the suspension is a likely suspect. When accelerating from a stop, I'm hearing a clunk, clunk, clunk sound from the front driver side wheel area. This noise is coming from the right rear wheel area and begins as "clunk-clunk-clunk-clunk-clunk". I had the same clunking noise when I accelerated my 2004 VW Touareg V8. I had bought a set of Mechanics Chassis Microphones so I could track down where the sound was coming from. Is there a sound/video of this clunk noise. Came back absolutely fine so I drove it until recently, constantly cursing the noise and wondering what the heck it could be! In January of this year we were buying a car for our son and were googling reviews of different little used cars. Almost sounds like trunk is bouncing, but not every time, just quite often. We just bought our Suburban today. pop/clunk on acceleration and deceleration So after a thorough search, I'm trying to narrow this noise down and hoping a suspension guru will be able to help out. When I power wash the fuck out of the truck it goes away for a bit and comes back. It got so loud I took it back to the dealer. The frequency of the click depended on the speed of the car. I have been getting a decent clunk sound that i can feel threw the peddle when coming to a stop. it almost seems like when the jeeps momentum is going forward and stops for a second it makes the clunk noise. Noise and vibration seem to be under driver's feet. He had a used transmission put in a few years ago and it has happened since. If I get off throttle, and then ease back in it, it's smooth. Clunking noise when accelerating '04 Subaru Legacy was created by CaptainGlac1er The head gasket in my Subaru has to be replaced which is $1800 and I have invested about $2000 already in this car over the past year but I also have this clunking which makes me think I should invest in another car. If your car makes noise when accelerating or turning, don't ignore it. The proper rectification of this problem can easily be completed in a few hours and should cost less than $20. Single "clunk" when accelerating from a stop I was hoping someone could help. I do recall getting the same clunking noise yesterday, only it happened once and very quitely and I thought I'd just kicked up a stone into the left front wheel arch or something. 5 4x4 165000km. Transmission clunk when accelerating. Car makes a clunking noise when accelerating. Wondered if anyone else has heard or felt this. The problem is more noticeable when cornering right especially if driving over a bump. I dropped the shaft, replaced front and rear and now squeals, grinding, and clunks are gone. The first step you need to take is to isolate the cause of the rattling noise. Learn more about 7 common car noises you should never ignore, discover what each type of noise could be, and find out how you should approach getting it repaired. Various friends who've layed on the floor while I drive around say it sounds like a piece of metal flopping back and fourth against metal. OK, have a new noise in my '05 500. You may have to speed the engine up a little to make it work. If your car makes noise when accelerating or turning, don't ignore it. After I take it back to these clowns my next stop will be a shop someone recommended to me in Brooklyn. manual transmission 96 Toyota Tacoma 4 wheel drive banging sound when accelerating and slowing down. A humming, grinding or hissing car noise can end up costing you. It could also be things like transmission mounts or engine mounts, but I've had enough U-Joints go bad over the years and exhibit that exact same type of. Carburetor may have a bad accelerator pump or power circuit. It's a hard rubber piece that sits between the engine and, well, the rest of the car. When I accelerate and let of really quickly it almost sounds like something is rocking back and forth. Dont hear anything while driving, only happens as soon as the truck moves from a complete stop. OEM motor is damn expensive. But when it is warm, not cold, I get a mild knocking sound when at the lower RPM range. seen in Truck Trend. I took it back to the dealer, they said they could not hear anything. Knock/Clunk noise when accelerating I have been looking through google and the forums to try an find an answer but can't seem to find what I'm looking for so please forgive me if I have overlooked a thread and missed the answer. My 06 Z71 suburban has been making similar clunk noise when coming to stop for a. Sounds like it just could be that front diff. In an attemtpt to correct the clunking noice they front loaded the drive shaft with an added spring load. He had a used transmission put in a few years ago and it has happened since. My Enclave just turned 50k and when i put the car in gear (drive or reverse foot on the brake) and accelerate or decelerate, there is a clunk sound coming from the front driver's side. Something made me google "clunking noise in BMW X3" and OMG!!!! Just look what I found!!!. Thanks for the tips. It is when she goes over a bump. Going over the same sized bumps on the left side of the car does not produce the noise. These are problems reported by owners of 1997 through 1999 Grand Prixs, organized by general area where the problem occurs. Came back absolutely fine so I drove it until recently, constantly cursing the noise and wondering what the heck it could be! In January of this year we were buying a car for our son and were googling reviews of different little used cars. It only happens after braking at a stop then taking off. This car has everything I need. The sound can be heard in any gear and neutral, and sounds more like a sharp "metal-on-metal" scraping sound at very slow speeds. refer to the appropriate ranger workshop manual for diagnosis and repair of engagement clunk, tip-in/out clunk or clutch engagement clunk conditions. I have noticed since new, and clunk or small pop noise in the rear when briskley accelerating from a complete stop. Beautiful and smooth. To verify the condition, back the vehicle up, alternately accelerating and decelerating while in reverse. It has recently started to make a single knock or clunk sound when I accelerate and brake. It doesnt happen every time, but close to when taking off from a stop i get a clunk noise from the rear end. Clunking noise on front passanger when accelerating. Drives well but I do get a brief clunk with a metallic scraping noise from under the car when I pull away sharply from a stationary position with the engine idling - sound is more pronounced if I pull away sharply half way up a hill. My first new car was a 1969 Chevy II. I think it is coming from the driver's side, but it I could be wrong. Clunking noise in rear when accelerating exhaust possibly,or radius arm bushes,call a mobile mechanic for a hands on look at problem this sort of thing is nigh on impossible to diagnose from a description. When I’m accelerating about 10mph from a junction or from starting the car and driving off from a car park, the car seems to always give off a loud clunk/click type of noise. The clunk sounds like it's coming from the area of the rear differential. It really happens so fast that it's hard to determine where it is coming from, but in my imagination I see the entire electric motor shifting on it's motor mounts!.