Question about 1998 Cadillac DeVille

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Hum at idel

When at idle and car in drive and a/c on I get a loud hum in car. start to get underway hum stop.

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  • geraldwayne1
    geraldwayne1 May 18, 2014

    Does the hum stop if you shift to nuetral or park? If so you may want to look at your motor mounts. They tend to cause excess vibration which sometimes sounds like a hum. If you shift to nuetral or park and it stops check your motor mounts.

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Check the a/c belt tention

Posted on Apr 19, 2014

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