Idle speed is controlled by the power train control module (PCM) and cannot be set manually. You can, however, make sure that the intake, throttle body and MAF are all clean as that may help. Otherwise, you need to see if the PCM has thrown any codes your way.
Idle Control Module,same issue on my f-150,unfortunatly this part is attached to the fuel rail and cannot be replaced separatly, have to replace complete fuel rail, module is attached.later years come separate so it can be replaced.That sucks, I'll just keep my foot resting slightly for now, dealer said 400$, no way.If anyone has a better way to fix please let me know! thanks
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