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 |
|---|
| HIGH PRESSURE FUEL SYSTEM LEAK AT THE SUPPLY TUBE OR INJECTORS |
| LOW PRESSURE FUEL SYSTEM LEAK / RESTRICTION / LOW PRESSURE ISSUE |
| HIGH RESISTANCE IN THE FUEL RAIL PRESSURE SENSOR 5-VOLT SUPPLY CIRCUIT |
| HIGH RESISTANCE IN THE FUEL RAIL PRESSURE SENSOR GROUND CIRCUIT |
| HIGH RESISTANCE IN THE FUEL QUANTITY SOLENOID HIGH SIDE CONTROL CIRCUIT |
| HIGH RESISTANCE IN THE FUEL QUANTITY SOLENOID LOW SIDE CONTROL CIRCUIT |
| FUEL RAIL PRESSURE SENSOR |
| FAULTY FUEL PUMP MODULE IN THE LOW PRESSURE FUEL SYSTEM |
| FUEL QUANTITY SOLENOID/HIGH PRESSURE FUEL PUMP ASSEMBLY |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .