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2000 Jeep Grand Cherokee Laredo 4.7L Excessive Emissions, Hesitation, Misfire, MIL Lamp on
I used a lab scope and monitored the cam and crank sensor signals triggering off of #1 cylinder and compared to wave forms in library. Engine appears to be 1 tooth off according to scope and library wave forms. Customer took car back and removed covers. Sent m...
FIX posted 9/17/2015
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Related Documents & Media | VIN | 1J4GW48N6Y |
| Engine | 4.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / EFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Hesitation, Misfire, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0355 | Ignition Control Module Circuit 5 Malfunction |
| P1391 | CKP Or CMP Sensor Signal Intermittent |
Message Closed
Vehicle Data
2000 Jeep Grand Cherokee Laredo
| VIN | 1J4GW48N6Y |
| Engine | 4.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / EFI |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Hesitation, Misfire, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0355 | Ignition Control Module Circuit 5 Malfunction |
| P1391 | CKP Or CMP Sensor Signal Intermittent |
Video