1997 Ford Truck idles rough

GMAN250

MEMBER
1997 FORD TRUCK
V8
4WD
AUTOMATIC
203,000 MILES

Replaced plugs wires coils fuel filter

Thursday, February 11th, 2010 AT 6:33 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Rough/Misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel

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Thursday, February 11th, 2010 AT 7:14 PM

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