IAC valve issues??
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New User
Joined: Jul 2010
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IAC valve issues??
Hello all, 2003 F-150 here!!! My truck was having idle issues and stalling sometimes, so I replaced the IAC valve and the TP sensor. Now my trucks idle is up back to normal and not stalling, but now there is a loud humming noise. I have a K&N intake system and when I pinch the air hose going to the IAC valve the noise kind of goes away. What the hell is up........help me please!!!
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Joined: May 2007
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Check out this thread over in the Aerostar forum addressing the IAC and a "howling" noise.
https://www.ford-trucks.com/forums/2...ing-noise.html
https://www.ford-trucks.com/forums/2...ing-noise.html
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Joined: Jul 2010
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Fix my problem!!! I received the wrong part from the auto parts store. The part looked a little different, but I thought it was just cause it was an after market part. When replacing the IAC valve........it's got to be exactly the same. If not, you'll get a loud humming sound do to the fact that the valve is not operating the way its supposed to. I was able to track down the exact same part at another auto parts store. I installed it and that annoying fog horn sound was gone and my idle was back to normal. I hope my trial and error helps ya"ll!!
