1983 Ford F-150 missing

Tiny
THUNDER68
  • MEMBER
  • 1983 FORD F-150
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 171,000 MILES
I change plugs and wires when in park it runs fine when in gear it has a very bad miss
Sunday, August 8th, 2010 AT 9:21 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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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Sunday, August 8th, 2010 AT 10:12 AM

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