Whine noise from engine

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Jan 12, 2009 | 08:38 PM

Phishnvdub

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Joined: Jan 2009

Posts: 55

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From: Stuyvesant, NY

Whine noise from engine

I've got a whine under the hood when I rev the engine a little. It gets louder as the RPMs go up. Don't think it's the power steering or a belt. I think it's coming from the top part of the engine somewhere, but not absolutely sure. I can also hear it from inside the cab, behind the dash. Makes the noise in park if I rev the engine a little or while driving down the road. Sounds like a hiss or a turbo spooling up and quiets down when I'm in OD and the RPMs drop.. I've searched the forums and haven't come up with much. I think I read that someone had an IAC make some kind of noise like this. This is in my '03 250 5.4l XLT. Oh...I also checked tranny fluid and it's at level, red and dose not smell burnt. Any one else had this happen to them or heard of a problem like this?

Jan 12, 2009 | 08:45 PM

fordman8

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Joined: Jan 2004

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From: Ohio

I had a noise like you described and it was the pcv valve.

Jan 12, 2009 | 10:44 PM

twayneb

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Joined: Jan 2006

Posts: 400

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From: Calgary, Alberta, Canada

a/c compressor?

Jan 12, 2009 | 11:30 PM

aphotic26

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Joined: Dec 2008

Posts: 192

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From: Canada

I would have to say PCV, $3-5 piece at your local auto store. It's on the left valve cover before the oil cap spout...a hose should be connecting to it sitting in a rubber gromet...pull out the PCV and replace it with a new one. I had the same problem and some fte guys helped me out...hope this is useful.

PCV:

Jan 19, 2009 | 06:24 AM

Phishnvdub

Thread Starter

Junior User

Joined: Jan 2009

Posts: 55

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From: Stuyvesant, NY

I replaced the PCV about a month ago and rechecked it. I don't think it's that. I'm going to take me truck somewhere and have them look at it quick. I'll post back when I get it figured out.