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Whirring/Whining noise coming from engine?

7K views 0 replies 1 participant last post by  detonate 
#1 ·
My '07 Caliber R/T AWD is making a noise that makes the engine sound like an electric motor (think R/C car). It gets louder the faster I'm going.

I've searched around and I believe it's the pulley on the alternator. Can anyone confirm this?

I don't want to purchase the tools to remove the pulley and would proceed by just changing the alternator. Aftermarket alternators I've found state that the pulley is a clutch pulley. My searches say that the Caliber uses a decoupler pulley. Is a clutch pulley the same as a decoupler pulley?

I'm deciding on one of these alternators. Is one better than the other? Both of these use a clutch pulley.

http://shop.advanceautoparts.com/we...duct_alternator--115-amps-toughone_19850538-p

http://www.autozone.com/autozone/pa...p1jiZ93xme?itemIdentifier=973945_415475_9606_
 
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