Question about 2002 Chevrolet Malibu
First you have to locate the source of the noise. If the there is any noise during idling you can locate the noise source using a long screw driver touching the engine with the tip, and listening at the holder of screw driver. A needle stethoscope can do a better job, and cost you less than $10. If the squealing noise comes from the engine compartment for one minute or so, when you start engine, might be the loose belt which has to be replaced. If this is right then you have to replace the timing chain too.
Might be anything, a bad bearing at belt tensioner, at AC compressor or anything else. It is a good idea to locate the source of the noise first. Hope this will help to narrow the problem.
Posted on Oct 10, 2010
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Posted on Jan 02, 2017
Is it noisy with only the blower fan on or does the A/C have to be on to get the noise.
Try using the heater only and see if the noise is present.
Let me know.
Posted on Jun 19, 2009
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