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post #1 of 3 (permalink) Old 05-16-08, 08:08 PM Thread Starter
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mustang idler pulley


Hello all,
Got a 2001 Mustang GT, and there's a nice whine coming from the engine, increasing and decreasing with acceleration/deceleration. Took it to 2 dealerships, and both said to change the ps fluid, but one also said to change the idler pulley and tensioner assembly. I had the fluid changed, it was brown. But I am wondering about changing the idler and tensioner. How do parts like that go bad, I mean what would be wrong with them that would cause the squealing?
Thanks for the input....

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post #2 of 3 (permalink) Old 05-17-08, 08:21 AM
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Re: mustang idler pulley

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post #3 of 3 (permalink) Old 05-17-08, 04:32 PM
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Re: mustang idler pulley

Have you tried a new serpentine belt? That might get rid of the squeal. Do use a Motorcraft belt. I find the Dayco's greasy/slick and have never liked them. Could be the tensioner is played. Chances are the new belt might do the trick without having to spring for new parts just yet.
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