1999 Ford F-150 missing while driving

Tiny
STEVEBULLOCK
  • MEMBER
  • 1999 FORD F-150
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 225,000 MILES
Engine idles fine. Miss while driving. Worse in wet weather. Installed new plugs and wires with no affect.
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Tuesday, August 24th, 2010 AT 7:39 PM

1 Reply

Tiny
RASMATAZ
  • MEMBER
Engine running rough or misfiring can be cause by the following:

1. Defective spark plug
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.
11. Idle air control valve.
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Tuesday, August 24th, 2010 AT 7:54 PM

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