idle air control

  1. C

    Creeping, slightly high idle.

    I live in my expedition so I idle a lot. When the vehicle hasn’t been running for a while, it starts at 600rpm. But slowly it’ll get all the way up to 900, especially with the AC on. I turn the ac off and it stabilizes at around 850, turn it on it goes up to 950. Also the engine will make...
  2. L

    2003 Idle Air Control (IAC) Valve replacement 4.6 or 5.4?

    Hey there. I have 2003 Ford Expedition XLT. Several days ago the service engine lights illuminated, I used my OBD Scanner and it reads P1507 Code. I thought it might be an IAC problem. I bought replacement and get it installed. However I noticed that the electrical connection is located on the...
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