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2001 Jeep Cherokee Sport 4.0L Poor Idle Quality, MIL Lamp on, Low vacuume
Vehicle has low engine vacuum at idle 14in at 1500 rpm
vacuum is good at 20in. I have removed front cover to check
cam timing looks ok. Checked compression ok. Checked cam
and crank sensor correlation physical and with lab scope
ok.
Summary posted 3/21/2015
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Related Documents & Media | VIN | 1J4FT48S01 |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / INJECTED |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, MIL Lamp on, Low Vacuume |
| Occurs | Always |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0304 | Cylinder 4 Misfire Detected |
| P0306 | Cylinder 6 Misfire Detected |
Message Closed w/Summary
Vehicle Data
2001 Jeep Cherokee Sport
| VIN | 1J4FT48S01 |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / INJECTED |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, MIL Lamp on, Low Vacuume |
| Occurs | Always |
Trouble Codes
| P0300 | Multiple Misfire Detected |
| P0304 | Cylinder 4 Misfire Detected |
| P0306 | Cylinder 6 Misfire Detected |
Video