
2003 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Misfire, MIL Lamp on
This Jeep came in with a bad miss. My customer has already replaced the spark plugs-coil rail-crank sensor & ran sea foam through the intake.I thought it might have bad injectors so I replaced #1 & #6 injectors. I checked compression & it is ok.I used my testo...
FIX posted 3/10/2014
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Message Closed w/FIX
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VIN | 1J4GW48S63 |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0301 | Cylinder 1 Misfire Detected |
P0306 | Cylinder 6 Misfire Detected |
Message Closed w/FIX
Vehicle Data
2003 Jeep Grand Cherokee Laredo
VIN | 1J4GW48S63 |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
Occurs | Always |
Trouble Codes
P0301 | Cylinder 1 Misfire Detected |
P0306 | Cylinder 6 Misfire Detected |