Question about 1993 Oldsmobile Cutlass Ciera

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I have a new muffler but the car has a humming sound that can be mistaken as a muffler problem at first sound what should i do

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That humming sound can be cause by a semi clog calyter converter

Posted on Mar 01, 2011

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Harmonics are tough to diagnose via afar. I'd have a competent shop/tech test drive it with you and have him/her listen to it. Could be wheel bearing, drive shaft/u-joint or many other possibilities.

Posted on Mar 01, 2011

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