C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

clunk when driving slow.......

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Old May 14, 2002 | 06:11 AM
  #1  
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From: los angelos ca
Default clunk when driving slow.......

I have a 1988 vette with an auto... When i am driving slow like through a parking lot, i hear a clunk from the rear going into 3 gear. It goes into 2nd then 3rd and i can feel and hear a cluck. Doesn't do this when driving normally or really getting on it. What could this be...By the way it has 68,000 miles on it.
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Old May 14, 2002 | 10:03 AM
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From: Woodbridge VA
Default Re: clunk when driving slow....... (jmzooooo)

The same thing happens to mine. I recently had my transmission replaced and it didn't do it before that.
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Old May 14, 2002 | 12:13 PM
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Default Re: clunk when driving slow....... (jmzooooo)

It just may be that it's going into the next gear. I don't know how loud it is. I had my (700R4) tranny rebuilt just a few months ago and if I'm driving slow and it's switching gears it will make a slight clunk nothing loud just that it's going to another gear.
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Old May 14, 2002 | 12:22 PM
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St. Jude Donor '08
Default Re: clunk when driving slow....... (jmzooooo)

Looks like I get to say it first this time------


DONT drive slow! :jester


[Modified by vetluvr, 4:23 PM 5/14/2002]
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Old May 14, 2002 | 12:32 PM
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Default Re: clunk when driving slow....... (vetluvr)

Keep an eye on those 1/2 shaft and driveshaft ujoints... 86k miles, they can be suspect.
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Old May 14, 2002 | 01:29 PM
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Default Re: clunk when driving slow....... (jmzooooo)

I've got the same problem as well. new Tranny, new U-Joints, new Bearings, new Bushings. Only thing left is the gear.

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Old May 14, 2002 | 03:58 PM
  #7  
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From: los angelos ca
Default Re: clunk when driving slow....... (Jim-K)

Don't drive slow !!!! :jester funny......
sometime in a parking lot you have too.

It only clunks when going into 3rd and not 2nd gear....strange
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Old May 16, 2002 | 02:11 AM
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From: Park Ridge/Lincoln Park - Chicago, IL
St. Jude Donor '11
Default Re: clunk when driving slow....... (jmzooooo)

Mine makes a noise when it downshifts from 2nd to 1st. I was told it's normal. It is also noticable sometimes on the upshifts from 1-2 and 2-3. All noises, like yours, are almost always at slow speeds and/or light throttle.


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Old May 16, 2002 | 10:24 AM
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Default Re: clunk when driving slow....... (Admiral Blue)

My 95 does the same thing. I agree with Admiral Blue that it is normal. I have seen this posted here and at other forums,seems a lot C4s have that clunk. Chuck
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Old May 16, 2002 | 01:00 PM
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Default Re: clunk when driving slow....... (jmzooooo)

my 90 does it also, especially in drive and below, it's much less noticeable when the cars in overdrive, try that see if you notice a difference? and when going slow as n coming up to a stop sign is when mine makes the clunk, otherwise i think and feel this is normal, good luck :D
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