Cyl 4/5/6 seems to miss fire
10-26-2008, 05:35 PM
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Cyl 4/5/6 seems to miss fire
2000 F150, V6 4.2 Engine, standard trannie
Engines servicelight came on and had readings, changed out inginition coil, and plugs. Little change, engine runs rough no power. When pulling plug wires at coil while engine is running all cylinders have spark, only 1/2 & 3 show a noticable change to engine speed(almost stalling) while cylinders 4/5 & 6 show no change. I had reset the truck's CPU by pulling the battery wire so now it shows no codes in the OBII port. Any suggestions appreciated.
Engines servicelight came on and had readings, changed out inginition coil, and plugs. Little change, engine runs rough no power. When pulling plug wires at coil while engine is running all cylinders have spark, only 1/2 & 3 show a noticable change to engine speed(almost stalling) while cylinders 4/5 & 6 show no change. I had reset the truck's CPU by pulling the battery wire so now it shows no codes in the OBII port. Any suggestions appreciated.
