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. Lower the fuel tank.
  6. Remove the fuel tank. Refer to Fuel Tank Replacement .
  7. Disconnect electrical connector.
  8. Remove the fuel tank pressure sensor (1) from the fuel sender assembly (2)

Installation Procedure


    Object Number: 64998  Size: SH
  1. Install the fuel vapor pressure sensor (1) on the fuel sender assembly (2).
  2. Reconnect electrical connector
  3. Install the fuel tank. Refer to Fuel Tank Replacement .
  4. Reconnect the negative battery cable.