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2003 Jeep Grand Cherokee Laredo 4.0L Misfire, MIL Lamp on
this happens after 20 miles of driving and it picks up a miss on #1 and 5 cylinder (this time). The injector on those 2 cylinders had power but no trigger. I gave the intake a shot of carb cleaner and it did not smooth out. I thought maybe a spark issue but th...
FIX posted 8/20/2008
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Related Documents & Media | VIN | 1J4GW48S03 |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
| Occurs | Hot |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0301 | Cylinder 1 Misfire Detected |
| P0302 | Cylinder 2 Misfire Detected |
| P0303 | Cylinder 3 Misfire Detected |
| P0304 | Cylinder 4 Misfire Detected |
| P0305 | Cylinder 5 Misfire Detected |
Message Closed w/FIX
Vehicle Data
2003 Jeep Grand Cherokee Laredo
| VIN | 1J4GW48S03 |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
| Occurs | Hot |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0301 | Cylinder 1 Misfire Detected |
| P0302 | Cylinder 2 Misfire Detected |
| P0303 | Cylinder 3 Misfire Detected |
| P0304 | Cylinder 4 Misfire Detected |
| P0305 | Cylinder 5 Misfire Detected |
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