Question about 1998 Chevrolet Cavalier

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Grinding sound when running a mechanic said its timing chain..

Grinding sound...in belt area...i think its ac unit shot b/c it appears to be coming from there...mechanic just listend to it and said timing chain

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Most of the time when an ac compressor is going bad it will make the noise you are speaking of. A quick way to check it if it makes the noise even when setting still is to pop of your serpentine belt and if there is no longer a noise it is most likely your ac compresor. If it is the ac compressor it will most likely lock up soon and the car wont start but if you can live without ac a bypass pulley is a quick and cheap solution.

Posted on Jun 17, 2009

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First question. IS IT NOISY ONLY WHEN THE A/C IS ON ? If yes , its the compressor, if not could ne the A/C compressor clutch bearing. Best found using a " mechanics " stethoscope such as a doctor uses to pinpoint the noise. Hope this helps

Posted on Jun 14, 2009

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