Engine Missing or Hesitating

Tiny
WILLIAM VICTOR NIEDZWIECKI
  • MEMBER
  • 1999 JEEP CHEROKEE
  • 6 CYL
1999 Jeep Grand Cherokee Laredo
What's causing it to miss? My Jeep started missing overnight so I put in new wires and plugs, checked the fuel relay and the voltage relay and it's missing badly.
Thursday, January 13th, 2011 AT 9:30 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or misfiring can be cause by the following:

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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Monday, March 14th, 2011 AT 11:25 PM

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