1992 Ford Thunderbird Vibrates on Gas

1992 FORD THUNDERBIRD
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BROWNEYEZ8391
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I have a 1992 ford thunderbird and everytime I put my foot on the gas pedal while the engine is running the entire cars starts to vibrate really bad but stops when Itake my foot off the gas. Can you tell me what that might be caused by?
Mar 8, 2006 at 11:39 PM
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BROWNEYEZ8391
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1992 ford thunderbird 5.0 2000.000 two hundred thousands miles on the engine
Mar 8, 2006 at 11:41 PM
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BROWNEYEZ8391
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I have a 1992 ford thunderbird 5.0 two hundred thousands miles on the engine. Everytime I put my foot on the gs to accelerat my entire car starts to vibrate but stops when I take my foot off the gas. Can you tell me what might cause this?
Mar 8, 2006 at 11:44 PM
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GR8JEEP
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I'm in no way a car expert but i think the first area i would look is to a possible broken engine mount, thats just a guess but its a start.
Mar 14, 2006 at 12:36 PM
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NOS
  • ✓Experienced Mechanic
  • 320 POSTS
it kinda sounds like you have a bad harmonic balancer which is located on the front of your engine mounted on the crankshaft if the rubbr is pushing out or there is a lot of shake it will caues the engine to shake. that is what balances the engine and shoiuld be replaced soon if that is the problem it could cause your crank to break if not addressed. also sheck for vaccum leakes does your motor race a little at idel. if so you have a vaccumleak some where on the engine.hope this helps ( NOS )
Mar 15, 2006 at 12:43 PM
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Suggested Repair

Inspect the harmonic balancer on the front of the crankshaft for separated rubber or excessive movement and replace it soon if damaged to avoid possible crankshaft damage. Also check for vacuum leaks if the engine races at idle.

Conversation Summary

The owner of a 1992 Ford Thunderbird 5.0 with about 200,000 miles says the whole car vibrates badly when the gas pedal is pressed and stops vibrating when the pedal is released. A non-expert guessed at a broken engine mount. The expert said a failing harmonic balancer is a likely cause and should be replaced promptly, and also advised checking for a vacuum leak if idle speed rises.

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