Making a loud humming sound around the alternator area. It happens when idle or running. Not overheating and no warning lights are on.
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2005 Dodge Caravan Question: Loud Humming Sound
Answer #1patrick mannion from Greg Solow's Engine Room, May 02, 2011, 23:48Master
It's hard to identify a noise without hearing it first hand. Check the water pump, listen to the alternator bearings with a mechanic's stethoscope and look at anything driven off the fan belt to see if the noise is external to the engine.