Possible Causes
WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| INTAKE MANIFOLD LEAK AT CYLINDER 4 |
| FUEL INJECTOR ISSUES AT CYLINDER 4 |
| IGNITION SYSTEM ISSUES AT CYLINDER 4 |
| CYLINDER COMPRESSION IMBALANCE |
| CARBON BUILD UP |
| VARIABLE VALVE TIMING ISSUES |
| VALVE TRAIN ISSUES |
| O2 SENSOR |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .