GM Service Manual Online
For 1990-2009 cars only

Fuel Tank Pressure Sensor Replacement Single Tank

Removal Procedure


    Object Number: 300138  Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  3. Drain the fuel tank. Refer to Fuel Tank Draining .
  4. Remove the fuel tank. Refer to Fuel Tank Replacement .

  5. Object Number: 371000  Size: SH
  6. Remove the fuel pressure sensor (1).

Installation Procedure


    Object Number: 371000  Size: SH
  1. Install the fuel pressure sensor (1).

  2. Object Number: 300138  Size: SH
  3. Install the fuel tank. Refer to Fuel Tank Replacement .
  4. Refill the fuel tank.
  5. Install the fuel filler cap.
  6. Connect the negative battery cable.
  7. Inspect for leaks.
  8. 6.1. Turn the ignition ON for 2 seconds.
    6.2. Turn the ignition OFF for 10 seconds.
    6.3. Turn the ignition ON.
    6.4. Inspect for fuel leaks.

Fuel Tank Pressure Sensor Replacement Dual Tanks

Removal Procedure


    Object Number: 645600  Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  3. Drain the fuel tank. Refer to Fuel Tank Draining .
  4. Remove the fuel tank. Refer to Fuel Tank Replacement .
  5. Remove the fuel pressure sensor (1).

Installation Procedure


    Object Number: 645600  Size: SH
  1. Install the fuel pressure sensor (1).
  2. Install the fuel tank. Refer to Fuel Tank Replacement .
  3. Refill the fuel tank.
  4. Install the fuel filler cap.
  5. Connect the negative battery cable.
  6. Inspect for leaks.
  7. 6.1. Turn the ignition ON for 2 seconds.
    6.2. Turn the ignition OFF for 10 seconds.
    6.3. Turn the ignition ON.
    6.4. Inspect for fuel leaks.