GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC K Sierra - 4WD 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 Fuel Level Sensor Replacement

Removal Procedure

    Object Number: 300138 Size: SH

    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. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief .
  3. Drain the fuel tank. Refer to Fuel Tank Draining .
  4. Remove the fuel tank. Refer to Fuel Tank Replacement .

    5. Object Number: 386369 Size: MH
  5. Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .

    6. Object Number: 371000 Size: SH
  6. Disconnect the fuel pump electrical connector (5).
  7. Remove the fuel level sensor electrical connector retaining clip (6).
  8. Disconnect the fuel level sensor electrical connector (7) from under the fuel sender cover.
  9. Remove the fuel level sensor retaining clip (4).
  10. Squeeze the locking tangs and remove the fuel level sensor (3).

Installation Procedure

    Object Number: 371000 Size: SH
  1. Install the fuel level sensor (3).
  2. Install the fuel level sensor retaining clip (4).
  3. Connect the fuel level sensor electrical connector (7).
  4. Connect the fuel level sensor electrical connector retaining clip (6).
  5. Connect the fuel pump electrical connector (5).

    6. Object Number: 386369 Size: MH
  6. Install the fuel sender assembly. Refer to Fuel Sender Assembly Replacement .

    7. Object Number: 300138 Size: SH
  7. Install the fuel tank. Refer to Fuel Tank Replacement .
  8. Refill the fuel tank.
  9. Tighten the fuel filler cap.
  10. Connect the negative battery cable.
  11. Inspect for leaks.
    12. 11.1. Turn the ignition ON for 2 seconds.
    11.2. Turn the ignition OFF for 10 seconds.
    11.3. Turn the ignition ON.
    11.4. Inspect for fuel leaks.