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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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15 Replies Received
15 Replies Received
Related Documents & Media | 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 |
Video