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This is a discussion on What is this part? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Sorry, should've made the circle and arrow thicker to notice it better, but you can see it. I was curious ...

  1. 09-19-2012 07:35 PM #1
    BPanda
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    What is this part?

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    Sorry, should've made the circle and arrow thicker to notice it better, but you can see it. I was curious what the circled part was... I noticed a sound coming from the engine on cold starts a few weeks ago and couldn't figure out what it was so I popped the hood and saw this piece spinning, recreating the sound. What is it and what is it for? Sorry for the noobie question, I just like to know about as much as I can about my cars and don't think I've ever had this in any other one. Thanks
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  2. 09-19-2012 09:25 PM #2
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    A/C Condenser/Condenser Pulley?
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  3. 09-19-2012 09:36 PM #3
    Anub1s
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    Yeah that's the A/C pulley. It has a clutch system built in so that it can stop spinning the compressor and have the belt still turn a part of the pulley. Typically the sound comes when it engages or disengages.
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  4. 09-19-2012 10:32 PM #4
    Rambo
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    What is this part?

    Quote Originally Posted by Anub1s View Post
    Yeah that's the A/C pulley. It has a clutch system built in so that it can stop spinning the compressor and have the belt still turn a part of the pulley. Typically the sound comes when it engages or disengages.
    This.

    Also, remember your AC compressor kicks on with the defroster, even if you don't have the button pushed.
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