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2002 Jeep Liberty misfire engine

Tiny
KC6ZIS
  • MEMBER
  • 2002 JEEP LIBERTY
Engine Performance problem
2002 Jeep Liberty 6 cyl Four Wheel Drive Automatic 97.000 miles

How to fix or repair a misfire engine? And how much this cost?
Sunday, September 26th, 2010 AT 9:55 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, September 26th, 2010 AT 10:00 AM

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