1989 Ford Bronco miss in engine

Tiny
MARC3077
  • MEMBER
  • 1989 FORD BRONCO
Engine Performance problem
1989 Ford Bronco 6 cyl Two Wheel Drive Manual

i have replaced the o2 sensor the plugs n wires the thermo stat and it still misses what other sensor would cause this? It only misses when I drive for a few miles?
Friday, July 30th, 2010 AT 1:04 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be caused 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.
Was this
answer
helpful?
Yes
No
Friday, July 30th, 2010 AT 4:09 PM

Please login or register to post a reply.

Related Engine Misfire Content

Intermittent Misfire
VIDEO
Intermittent Misfire
Instructional repair video
Misfire Random Code P0300
GUIDE
Misfire Random Code P0300
The world of automotive diagnostics can be complex, with numerous codes and potential issues to keep track of. One of the more common engine diagnostic codes is P0300, which...
VIEW MORE