85 Corvette vibrates at 80MPH

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Mar 22, 2003 | 09:39 AM

roadwarrior

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From: killeen Texas

85 Corvette vibrates at 80MPH

I check tires there balanced,rotors or starait shocks are new.
anyone have a clue or a suggestion let me know. :flag

Mar 22, 2003 | 10:33 AM

Bluevette85

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From: Latham NY

Re: 85 Corvette vibrates at 80MPH (roadwarrior)

Things to check: alignment, upper and lower ball joints, control arm bushings could be worn and loose.

Mar 22, 2003 | 11:37 AM

LD85

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From: Indianapolis IN

Re: 85 Corvette vibrates at 80MPH (Bluevette85)

Check damper maybe? Mine on my 85 separated and only made vibes at higer speeds.

Mar 22, 2003 | 01:16 PM

devilfish

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From: Sweden/Stockholm

Re: 85 Corvette vibrates at 80MPH (ld85)

Does it follow rpm, or just speed?

Regards

Mar 22, 2003 | 04:08 PM

Togo

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From: Glendale, AZ

Re: 85 Corvette vibrates at 80MPH (Bluevette85)

Quote:

Things to check: alignment, upper and lower ball joints, control arm bushings could be worn and loose.

check shocks too if they are not working properly, they could have the wheel hopping all over the road!

Mar 22, 2003 | 04:26 PM

8686corvette

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From: Orlando Florida

Re: 85 Corvette vibrates at 80MPH (roadwarrior)

Sounds like the alignment or the upper or lower control arm bushings. Had the same problem and had to replace them. Made a big difference :smash:

Mar 23, 2003 | 12:24 AM

Blueyednd

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From: Southeastern Louisiana

St. Jude Donor '05

Re: 85 Corvette vibrates at 80MPH (roadwarrior)

Mine did the same thing at 80. I had no problems, smooth as glass at 55-60, but at 80 bad vibration. I had them re-balance and spin the tire up to a higher speed. The shop told me that all the computer stuff that balances the tire is usually set to balance them at 55-60. After mine were re-balanced (also had them put the tire weights on the inside), I have no vibration at 80, 90, etc...

Mar 23, 2003 | 01:24 AM

vader86

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Re: 85 Corvette vibrates at 80MPH (roadwarrior)

run a search, this has come up at least 100 times

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Mar 23, 2003 | 09:14 PM

want2drivemy85

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From: How did I get here? AZ

Re: 85 Corvette vibrates at 80MPH (roadwarrior)

You might also want to consider what condition your tires are in. are they old, dry rotted, been sitting in one position for long periods of time? if so, you may need to look for new ones.

[Modified by want2drivemy85, 8:16 PM 3/23/2003]

Mar 23, 2003 | 09:32 PM

#10

Strick

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From: Lake Wylie SC

Re: 85 Corvette vibrates at 80MPH (roadwarrior)

Quote:

I check tires there balanced,rotors or starait shocks are new.
anyone have a clue or a suggestion let me know. :flag

I had the same type of vibration. My tires (the originals) had 40k on them! (The car was never driven hard). I bought new rims and tires, had them balanced with that new balancer that simulates the road with a roller bar against the tire while spinning. Wow, talk about smooooooth all the way to _ _ _. Also, watch out for the dreaded "flat spots" after a long sit in the garage.

Strick :flag :flag :flag