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Jeep Grand Cherokee

Tiny
BENNY50
  • MEMBER
  • 1997 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
97 jeep grand Cherokee runs very rough, plugs are new, cap and rotor new I think it might be the ignition module anyone ever have this problem temp sender also lighting up I don't think this has anything to do with it runs fine for a little while, 10 minutes or so, then rough idle checked fuel pressure no problems great pressure in guidelines ?
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Tuesday, July 19th, 2011 AT 3:10 AM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
https://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs
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.Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

Note: If it doesn't apply disregard it-
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Tuesday, July 19th, 2011 AT 3:14 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
To add to ras, I have found a large failure of exhaust valves. They hang up in the guides and do not seat. The seats themselves burn as well. Get it checked. It fits your symptoms.

Roy
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Tuesday, July 19th, 2011 AT 4:03 AM

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