Fuel Pressure Sensor/Switch: Service and Repair

Fuel Injection Fuel Rail Fuel Pressure Sensor Replacement

Removal Procedure

1. Remove the engine cover.
2. Remove the exhaust gas recirculation (EGR) cooler tube.




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






Notice: Refer to Fastener Notice.

1. Install the fuel pressure sensor (3).

Tighten the sensor to 70 N.m (52 lb ft).

2. Connect the fuel rail pressure sensor electrical connector (1).
3. Install the EGR cooler tube.
4. Prime the fuel system. Refer to 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.