Fuel Pressure Sensor/Switch: Service and Repair

Fuel Injection Fuel Rail Fuel Pressure Sensor Replacement

Removal Procedure

1. Remove the engine cover. Refer to Engine Cover Replacement (Service and Repair).
2. Remove the exhaust gas recirculation (EGR) cooler tube. Refer to Exhaust Gas Recirculation Valve Cooler Replacement (Exhaust Gas Recirculation Valve Cooler Replacement).




3. Disconnect the fuel rail pressure sensor electrical connector (1).
4. Prior to removal, clean the fuel pressure sensor and surrounding area thoroughly with solvent, such as GM P/N 12377981 (Canadian P/N 10953463) or equivalent.
5. Using compressed air, thoroughly blow dry the sensor and surrounding area.
6. Remove the fuel pressure sensor (3).

Installation Procedure





Caution: Refer to Fastener Caution (Fastener Caution).

1. Install the fuel pressure sensor (3) and tighten to 70 Nm (52 lb ft).
2. Connect the fuel rail pressure sensor electrical connector (1).
3. Install the EGR cooler tube. Refer to Exhaust Gas Recirculation Valve Cooler Replacement (Exhaust Gas Recirculation Valve Cooler Replacement).
4. Prime the fuel system. Refer to Fuel System Priming (Fuel System Priming).
5. Start the engine. If the engine stalls, repeat the above step.
6. Once the engine starts, inspect for fuel leaks.
7. Install the engine cover. Refer to Engine Cover Replacement (Service and Repair).