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I just took my truck to the Ford dealership to have a diagnostic test run on it because it wouldn't stay running when you took your foot off the gas.
They told me the wiring to the idle air control valve needed to be replaced. He said to do this the intake had to be removed and it would cost $800 to $900. After I picked my jaw up off the floor I told him thank you very much and went to get my truck.
Is there any way to replace that wiring harness without removing the intake? He did say something about using a jumper and that would "only" cost $250 to $300.
The wiring is probably fine. Change the IAC yourself it is an easy (two-bolt, one electrical connector) five minute job. It seems like the part costs around $60 when I changed mine.
Thank you. I'll try that. This is going to sound like a stupid question, but do you think they would have checked that? Or are you thinking they got the diagnostic code and automatically went for the wiring?
I tried replacing the IAC valve and it didnt correct the problem. Thank you so much for the suggestion. They took the part back thank goodness. LOL. A friend of mine suggested adjusting the idle speed by turning the idle adjustment screw. Any thoughts on that one?
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