of each plugs on both coil pac? when truck gets warmed up two plugs on each coil pack stops firing and truck vibrates bad and won't hardly accelarate. Replaced coil packs, air flow sensor , computer and fuel filter. Every once in a while when it's idling it accelerates by itself. What else can i check?
My 1992 Ford Ranger hits on all eight plugs when cold but when it gets hot two
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