Idling high and low

Discussion in '2004 - 2008 Ford F150 Truck Forum' started by Rachel, Dec 17, 2019.

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  1. Rachel

    My ford f150 is idling high and low and will die sometimes when idling.We have had the o2 sensors replaced, throttle body, fuel filter and coil packs. Nothing worked. Any ideas would be great.
     
    Rachel, Dec 17, 2019
    #1
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  2. FTZ HAIC Staff Member Oregon Chapter Founding Member

    Have you checked it for any error codes with a scanner? It could a vacuum leak, or any number of things which require testing so you don't keep throwing parts at it. Is it better or worse when the engine is cold, when warm or the same exact problem regardless of engine temp.
     
    FTZ HAIC, Dec 17, 2019
    #2
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