Cavalier 2.0 SRi - Vibration

Honest John Back Room » Technical matters
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Sun 2 Mar 2003 17:15
Cavalier 2.0 SRi - Vibration - Steve G
I have a 1992 Cavalier which has a vibration relating to engine speed.
The floor pan buzzes and is particular noisy around 3500-4000 RPM.You can actually feel/hear the vibration when driving.
Any ideas on possible causes ?
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Sun 2 Mar 2003 18:14
Cavalier 2.0 SRi - Vibration - jud
Check for the exhaust catching the body work, or loose engine mountings
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Sun 2 Mar 2003 18:22
Cavalier 2.0 SRi - Vibration - Mark (RLBS)
Likely to be the exhaist somewhere, I shoudl think. Is it touching anything metal anywhere ?
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Sun 2 Mar 2003 22:51
Cavalier 2.0 SRi - Vibration - Steve G
I should have said but i have already checked the exhaust system. There is no sign of it touching the body. The engine mounts seem fine - they dont move when loading the engine.
Any more idea's ???
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Mon 3 Mar 2003 00:11
Cavalier 2.0 SRi - Vibration - Dynamic Dave
Can you also feel this vibration while the car is stationary when you take it up to 3500-4000 RPM, or is it only when moving?
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Mon 3 Mar 2003 14:11
Cavalier 2.0 SRi - Vibration - Steve G
When stationery and moving.
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Mon 3 Mar 2003 14:14
Cavalier 2.0 SRi - Vibration - james_60
Hi

Must be the engine mounts or loose suspension components

J Stephenson
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Mon 3 Mar 2003 18:25
Cavalier 2.0 SRi - Vibration - Dynamic Dave
Right, now we've established that, does the noise change at all when you keep your hand on the gearstick?
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Mon 3 Mar 2003 19:32
Cavalier 2.0 SRi - Vibration - Steve G
>>Right, now we've established that, does the noise change at all when you keep your hand on the gearstick?

Sorry Dave but it makes no difference...

I did about 150 miles in it today, mainly motorway and its really getting on my nerves !
At about 3400 RPM the noise is quite loud (low in tone) and the whole car has a mild vibration (steering/pedals/floor pan).
When the revs are below or above 3400rpm the noise/vibration diminishes considerably.

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