2001 screw whistle

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Mar 31, 2011 | 09:56 PM

troll1813

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2001 screw whistle

my 2001 screw 5.4 whistles when i accelerate, but goes away when i slow down or hold steady speed. any ideas why?

Mar 31, 2011 | 10:12 PM

Patman

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From: DFW

do you have an aftermarket intake?

Mar 31, 2011 | 11:01 PM

avfrog

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From: Missouri

Do you have a blower?

See where this is headed? List specs...

Apr 3, 2011 | 09:43 PM

OneBadCrewX4

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From: Broken Arrow, Ok

i'd check out the idle air control valve

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