high pitched squealing, high throttle - Ford Powerstroke Diesel Forum
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Old 12-01-2011, 04:01 PM
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high pitched squealing, high throttle

Today while towing I was on the throttle decently hard with the 210 tp on a slight hill at about 35 PSI and got a real high pitch squealing noise if I let off it goes away. If i get back on it it comes back. Mainly at higher pressures it seems. Also, I seem to hear these whooshing sounds that I haven't heard before at these same higher pressures not coming from the intake.

Maybe a leaky clamp? I don't know. Thanks for the help.
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Old 12-01-2011, 04:13 PM
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I thought I would add that she is running great and nothing SEEMS to be effected.
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Old 12-01-2011, 04:21 PM
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my dad is having the same squealing noise in his 06, its gotten worse now it does it when he is going down hill and in tow haul.
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Old 12-01-2011, 04:45 PM
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Cracked boot maybe? I had a 6.0 with a cracked boot that would squeal. Also if its kinda like a tea kettle it could be your headgaskets.
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Old 12-02-2011, 10:06 AM
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It sounds like a key being scratched down a big pane of glass
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