Quote:
Originally Posted by rmr2122
Should I replace the entire alternator with a unit from FCP? Or better to keep my OEM and just replace the bearings
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First confirm it IS the alternator bearings, although power washing the alternator is bound to be the cause of this. Alternators need to stay dry. I always put a grocery bag over mine if I'm washing down an engine bay.
Remove the belt and run the engine (for a SHORT time!) - if the noise goes away, it's something the belt is spinning; an idler, a tensioner, the water pump or the alternator.
You can also use a long rod or large screwdriver as a "stethoscope", placing one end on the alternator housing, tensioner etc. and the other end against your ear, to listen for the source of the noise.
It's without a doubt it some that rotates!
