GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages.

Important: Always maintain cleanliness when servicing fuel system components.


    Object Number: 50636  Size: SH
  1. Relieve fuel system pressure. Refer to Fuel Pressure Relief .
  2. Drain fuel tank. Refer to Fuel Tank Draining .
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in general information.
  4. Remove the fuel tank. Refer to Fuel Tank Replacement .
  5. Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
  6. Remove the fuel level sensor (5) from the modular fuel sender.

Installation Procedure


    Object Number: 50636  Size: SH
  1. Install the fuel level sensor (5) to the modular fuel sender.
  2. Reinstall the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
  3. Reinstall the fuel tank. Refer to Fuel Tank Replacement .
  4. Lower the vehicle.
  5. Tighten the fuel fill cap.
  6. Reconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in engine electrical.
  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. Check for fuel leaks.