Hissing noise under load

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05-09-2009, 09:12 PM

hbk81680

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Hissing noise under load

I have a 2001 Neon 2.0 Liter ES that just started to make a hissing noise when accelerating. I can only hear the noise when the engine is under load.

Has anybody ever had this issue before?

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05-09-2009, 09:45 PM

darthroush

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Do you have a CAI? How's the car running?

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05-10-2009, 12:17 PM

hbk81680

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No CAI and besides the noise the car is running great. Any idea what is causing this?

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05-10-2009, 06:52 PM

darthroush

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Sounds like some sort of vacuum leak then? Check the PCV and vacuum lines for cracks.

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05-10-2009, 11:07 PM

smallblockfreak

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or you have a small exhaust leak

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05-11-2009, 11:23 AM

jmja9281

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I agree it sounds like an exhaust leak.

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