Pulley on a.c. unit

Asked by Theresa Dec 21, 2019 at 11:52 PM about the 2007 Pontiac Grand Prix Base

Question type: Maintenance & Repair

Can the pully go bad on the a.c.  unit ? I've already
replaced the power steering pump and the pully,
water pump, pully tensenor. I think that is the last
pully besides the one on the starter and that's not
where the noise is coming from.

1 Answer

209,915

Yes they can and do go bad, usually the bearing goes out, it will take a new AC clutch assembly to fix it. Also check the vibration dampener, it’s on the front of crankshaft, these can start to come apart and start making a horrible sound. There is no pulley on the starter. HTH

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