High Pitched Squeal. - Ford Powerstroke Diesel Forum
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Old 07-24-2012, 11:06 AM
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High Pitched Squeal.

I have a high pitched noise coming from the truck when I lightly accelarate from a stop or when I am accelerating at any speed and quickly release the pedal. Any ideas guys? Ive only noticed it when tuned at 275LL with spartan. Nothing at stock levels, which I find odd. Ideas?
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Old 07-24-2012, 11:15 AM
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Could it be a belt tesioner or idler pulley? Also i have heard that a leaking up pipe will make that noise.
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Old 07-24-2012, 11:18 AM
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Different from an idler pulley noise as I just had one replaced, I know that sound very well. Ill have a look at the pipe. Thanks!
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