GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    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. Object Number: 64998  Size: SH
  3. Relieve the fuel pressure. Refer to Fuel Pressure Relief .
  4. Drain the fuel tank. Refer to Fuel Tank Draining .
  5. Remove the fuel tank. Refer to Fuel Tank Replacement .
  6. Disconnect the fuel tank pressure sensor electrical connector.
  7. Remove the fuel tank pressure sensor (1) from fuel sender assembly (2)

Installation Procedure


    Object Number: 64998  Size: SH
  1. Install the fuel tank pressure sensor (1) on the fuel sender assembly (2).
  2. Connect the fuel tank pressure sensor electrical connector.
  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. 7.1. Turn the ignition switch ON for 2 seconds.
    7.2. Turn the ignition switch OFF for 10 seconds.
    7.3. Turn the ignition switch ON.
    7.4. Inspect for fuel leaks.