Whenever im drivin down the road and come to a stop sign, yeild sign or light, (slowing down in general) there is a loud clunk noise right as im coming to a stop or am slowin down to under 10 mph. Nothin is different to my 289, everythings stock. I heard that this is a transmission problem, but any advice on how to stop this noise would be much appriciated.
loud "clunk" noise, help please
- Thread starter 19Nathen66
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12sec67
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66nightMARE said:
im sorry to laugh when you have a problem but DANG THAT WAS FUNNY
but please be more specific on where the noise is coming from.
Crawl under your car "in park" and try to turn the drive shaft back and forth. If its a u joint you will be able to emulate the same noise. However it won't be as loud because the force that you are applying is minimal as compared to the force the engine torque puts on the shaft in accelerate and decelerate.
Also check motor mounts, and transmission mount.
Kirk
Also check motor mounts, and transmission mount.
Kirk
1320stang
Founding Member
Strut rod bushing gone?? If its the front, that would rule out the drive shaft as the front u-joint is about even with your hip. BTW, you didn't mention if it was a C4 or a manual tranny. Also, usually, a bad u-joint has a sort of ring to it when it clunks.
1320stang
Founding Member
10secgoal said:
The only other thing I can think of would be a motor mount, that would be evident if he opened the hood, reached over and blipped the throttle.
OOH!!! Just thought of another one, shock beating against bottom of hood. May have come out of the shock mount. When you come to a stop, the nose drops and the shock could hit the hood, another easy to spot deal.
jerry S
New Member
1320stang
Founding Member
FORCED2DV8
New Member
Check your front suspension pieces, Bad ball joint, or control arm bushings, When ever you apply the brakes the car shifts it weight on these pieces...
If they are loos they can cause noise like your descibing..
If they are loos they can cause noise like your descibing..
You really need to isolate the general source -- i.e. suspension vs. transmission, etc.. Try (in a parking lot, etc. where it's safe) getting up to 15-20 mph (since the clunk happens at 10), put the car in N (if auto, out of gear if manual) and bring the car to a stop. If clunk -- probably not transmission. If no clunk -- probably transmission. If it is truly correlated to a specific speed (i.e. the speed at which the tranny kicks down a gear) I would suspect that. If it's more a function of weight transfer (i.e., occurs at different speeds depending upon the how enthusiastically you apply brakes) I would suspect brakes or suspension.
1320stang
Founding Member
I've got a friend that has a 2000 Xterra with about 160k on it. She was telling my wife that she heard a clunking noise around the right front tire and really couldn't afford a new car payment and was worried how much it'd cost to fix. I told her I'd look at it and drive it. I looked it over, nothing out of the ordinary. Took it for a drive, hitting bumps there was sort of a clinking noise that was high up. Parked it, kinda banged on the fender lip with my fist, heard it again. Popped the hood, the battery hold down wasn't on and was clinking against the fender.
Its c4...........also, i tried the parking lot test thing and when i put it in neutral and came to a stop, there was no clunking noise. Sounds like it is transmission problem. Im going to remove the driveshaft and lube it up with that silicon grease anyway. When i very first heard the noise my initial thought was that it was slammin my gears since it would happen around 10 mph....any more suggestions or insight would help. thanks
jerry S
New Member
blkfrd said:
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