1994 Ford Explorer runs ruf backfires when idling die when

Tiny
JAMES85
  • MEMBER
  • 1994 FORD EXPLORER
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 177,789 MILES
Engine runs ruf & backfires. When idling if you put in drive it gets rufer and dies
Sunday, August 1st, 2010 AT 4:53 PM

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 1st, 2010 AT 8:38 PM

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