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2004 Jeep Grand Cherokee Laredo 4.0L Misfire, MIL Lamp on
Posted to Chrysler Driveability on 8/2/2010 14 Replies

You would think this would be easy. Cylinder 1 misfire intermitent, mostly when cold at idle and slight accel. Switched #1 and #2 and then #3 injectors around and it always misfires on cylinder 1. Tried a new coil pack. Checked while idling bad and it is cylin...

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  Related Documents & Media  2004 Jeep Grand Cherokee Laredo

 
Message Closed w/FIX

car Vehicle Data

2004 Jeep Grand Cherokee Laredo

VIN 1J4GW48S54
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursCold, on Accel, Idle, Intermittently

Trouble Codes

P0301Cylinder 1 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2004 Jeep Grand Cherokee Laredo

VIN 1J4GW48S54
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursCold, on Accel, Idle, Intermittently

Trouble Codes

P0301Cylinder 1 Misfire Detected