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Discussion Starter #1
Hey there:

I have 2007 Focus that has starting making some crazy screeching sounds after starting and while driving at times, the pitch increases with acceleration. I'm going to try and change the belt this weekend however I was wondering if it could be a seized or seizing pulley that is making the sound. Should all the pulleys rotate freely when the belt is off? Any advice would be appreciated.
 

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'Should all the pulleys rotate freely when the belt is off?'

Yes.

The belt tensioner can be dead too and do the same. It is considered good mechanical practice to change both belt and tensioner at the same time unless one is fairly new.
 
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