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I have an 04 Ford Ranger 3.0 v-6 shows code p0306 cyl.6 misfire. Only acts up after driven for awhile then only runs bad under 1000 rpm. Runs bad for a few minutes then clears up and is fine or shut it off and start right back up and is fine. New plugs wi


if it's has "coil on plug"

if it's has "coil on plug" type, they've had problems with the coils, check #3 for carbon tracking.

Has new plugs, wires, and

Has new plugs, wires, and coil

check compression, if ok it

check compression, if ok it might be carbon build up on valves, try preforming a fuel injection service.


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