Metal on metal grinding sound

Asked by Pauline Sep 05, 2018 at 03:50 PM about the 2007 Pontiac Grand Prix

Question type: Maintenance & Repair

Metal grinding sound. Sounds like idle bearings/pulley bad
except that when belt removed sound is still there. Have
already changed pcv valve and the supercharger. Do not
know where to go from here please help

2 Answers
26,835

taver91 answered 6 years ago

Try to narrow down the probable source by standing in front of the car while it is at idle and try to determine the source by listening. Does it come from the front? back? right? left? Once you have narrowed the area then explore closer.

Mark helpful

Pauline answered 6 years ago

The sound is pretty intense but sounds louder on the right side where the starter is have not been able to pin point the exact area its so loud

Mark helpful

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