Sender Unit And Float: Removal

1. Remove fuel tank. Refer to REMOVAL  under FUEL TANK.
2. Remove fuel lines and electrical connector from fuel pump cover.
   NOTE: To prevent retaining ring damage, do not attempt to remove retaining ring with a 12 in. or shorter ratchet/breaker bar.
3. Use Fuel Tank Lock Ring Remover SA9156E and remove fuel pump module retaining ring. A 1/2 in. breaker bar (approximately 18 inches long) will easily loosen and remove the lock ring.
   Fig 1: Using Fuel Tank Lock Ring Remover

   Courtesy of GENERAL MOTORS CORP.
   NOTE: To prevent bending of the sending unit float during removal, lift the pump module up slightly to disengage the orientation tabs in the tank and rotate the module 45 degrees.
4. Remove fuel pump from fuel tank.
   Fig 2: Removing Fuel Pump Module

   Courtesy of GENERAL MOTORS CORP.
5. Remove wires from clip.
   Fig 3: Removing Wires From Clip

   Courtesy of GENERAL MOTORS CORP.
6. Remove positive and negative connectors from top of pump.
   Fig 4: Removing Connectors From Top Of Fuel Pump

   Courtesy of GENERAL MOTORS CORP.
7. Remove connector housing from bottom side of fuel pump cover. Disengage locking tab with fingernail or small flat blade screwdriver.
   Fig 5: Removing Connector Housing

   Courtesy of GENERAL MOTORS CORP.
8. Remove fuel level sender card by depressing locking tab and sliding card up (toward fuel pump cover).

IMPORTANT:  The fuel pump assembly is only serviced as a module without the sender unit. The inlet filter can be cleaned with mineral spirits; however, it cannot be replaced.