Whistling Noise, Help.
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Staging Lane
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Whistling Noise, Help.
I installed a FAST intake last year, high flow fuel rails, new injectors, all that jazz. Anyways, after my first highway drive a whistling noise started. I listened to it for a long time, because it never affected driveability or anything. I figured out that it starts out after the engine has been idling a while, because the pressure has to build up first. After I shut the engine off the whistling noise wanes out to a high pitched whistle, and the Whoosh...It sounds like my engine is letting out a sigh or relief. It sounds like the noise is coming from the lower front of the engine, and is not coming from the intake. Anyone ever heard this noise or what it could be?
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Launching!
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My air pump whistles when it's running. Of course that's only for a couple mins when first started up, but still, when it shuts off it sounds like an airplane shutting down at the gate.