1997 Ford Truck idles rough

Tiny
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

Tiny
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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