GM Service Manual Online
For 1990-2009 cars only

Fuel Level Sensor Replacement Prior to VIN 4S558922 (100mm Sender)

Removal Procedure


    Object Number: 682671  Size: SH
  1. Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
  2. Disconnect the fuel pump electrical connector (2).
  3. Remove the fuel level sensor electrical connector retaining clip (4).
  4. Disconnect the fuel level sensor electrical connector from under the fuel sender cover (5).
  5. Remove the fuel level sensor retaining clip.
  6. Squeeze the locking tangs and remove the fuel level sensor (3) from the modular fuel sender.

Installation Procedure


    Object Number: 682671  Size: SH
  1. Install the fuel level sensor (3) to the modular fuel sender.
  2. Install the fuel level sensor retaining clip.
  3. Connect the fuel level sensor electrical connector.
  4. Install the fuel level sensor electrical connector retaining clip (4).
  5. Connect the fuel pump electrical connector (2).
  6. Install the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .
  7. Inspect for fuel leaks with the following procedure:
  8. 7.1. Turn ON the ignition for 2 seconds.
    7.2. Turn OFF the ignition for 10 seconds.
    7.3. Turn ON the ignition.
    7.4. Inspect for fuel leaks.

Fuel Level Sensor Replacement VIN 4S558922 and Later (130mm Sender)

Removal Procedure

  1. Remove the fuel sender from the fuel tank. Refer to Fuel Sender Assembly Replacement Engine Controls - 3.6L (LY7).

  2. Object Number: 1404537  Size: SH
  3. Disconnect the fuel level sensor electrical connector located in the module cover.
  4. Use a small flat-bladed tool in order to disengage the fuel level sensor retainer.

  5. Object Number: 1404543  Size: SH
  6. Slide the fuel level sensor down in order to remove the fuel level sensor from the fuel sender module.

Installation Procedure


    Object Number: 1404543  Size: SH
  1. Slide the fuel level sensor up in order to install the fuel level sensor to the fuel sender module.
  2. Ensure that the fuel level sensor retainer is properly engaged.

  3. Object Number: 1404537  Size: SH
  4. Connect the fuel level sensor electrical connector.
  5. Install the fuel sender to the fuel tank. Refer to Fuel Sender Assembly Replacement Engine Controls - 3.6L (LY7).