The engine makes a low humming noise when driven but nothing when idling or racing the engine without driving
Dec 7, 2012 at 5:13 AM
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KHLOW2008
✓Experienced Mechanic
41,812 POSTS
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?