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.

Important: Always maintain cleanliness when servicing fuel system components.


    Object Number: 50636  Size: SH
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  2. Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
  3. Remove the fuel level sensor (5) from the fuel sender assembly.

Installation Procedure


    Object Number: 50636  Size: SH
  1. Install the fuel level sensor (5) to the fuel sender assembly.
  2. Install the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
  3. Tighten the fuel filler cap.
  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  5. Inspect for fuel leaks.
  6. 5.1. Turn ON the ignition for 2 seconds.
    5.2. Turn OFF the ignition for 10 seconds.
    5.3. Turn ON the ignition.
    5.4. Inspect for fuel leaks.