It sounds exactly like a bad u-joint.
Need your help! Clunking sound
Thread Starter
On The Tree
Joined: Nov 2009
Posts: 183
Likes: 1
Need your help! Clunking sound Alrighty, I recently boguht a 1996 Formula Firebird. After about 2 weeks of owning it, i get a light clunking when letting off and re-applying throttle. Also I get an identical clunking when slowing down at a stopsign or redlight when it shifts down to a lower gear, I have the A4 trans. I'm thinking its the Universal joint but am not sure if it is exactly that or if it in fact is the U-joint, which end might be bad the front or the rear u-joint?
How much do Universal Joints cost and are they hard to replace?
How much do Universal Joints cost and are they hard to replace?
Could be suspension bushing, trans mount, u-joint.
Although I doubt your problem is a U-joint, they are easy to change. Torch the old nylon snap rings out, and install the new joints. Just make sure the joint pivots easily on both planes before you install the driveshaft.
Although I doubt your problem is a U-joint, they are easy to change. Torch the old nylon snap rings out, and install the new joints. Just make sure the joint pivots easily on both planes before you install the driveshaft.
Thread Starter
On The Tree
Joined: Nov 2009
Posts: 183
Likes: 1
alrighty ill check out the universal joint and then the trans mount. I'm thinking its either one of the two because its a light clunk and it does it when giving it throttle and when its pops into a lower gear declererating, its not a thump, or a thud. and the reason i believe its a universal joint is that its towards the back more and wehn it goes over a hump and clunks it could be the reduced weight or somethign of the car and the stress comes off the driveshaft.
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Staging Lane
Joined: Sep 2009
Posts: 83
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From: California
I bought a 97 Z28 that started doing the same thing shortly after I got it. Light throttle let off and reapplying would make the clunk. When coming to a stop I can hear and feel a clunk almost every single time. I replaced my transmission mount and no change. I've decided its either the Ujoints in the driveshaft or my motor mounts are shot and its allowing my engine to move a lot which causes my exhaust to bang up against something under there.
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acceleration, clunk, clunking, deceleration, driveshaft, end, hard, hump, joints, kiitchener, lt1, rear, sound, trans, ujoints
