2006 Infiniti M35 Engine Makes Low Humming Noise Driven Nothing Idling Racing

2006 INFINITI M35
15,000 MILES
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The engine makes a low humming noise when driven but nothing when idling or racing the engine without driving
Dec 7, 2012 at 1:13 PM
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KHLOW2008
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I don't think the noise is from the engine. It is either the transmission or wheel bearings. Are there any difference in the noise when accelerating, decelerating, cruising or when gears upshifts/downshifts?

At what speed does the noise starts?



Dec 7, 2012 at 1:23 PM
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