Disassembly Procedure

Fig 1: Removing Fuel Feed Pipe From Fuel Tank Fuel Pump Module

Courtesy of GENERAL MOTORS COMPANY

Remove the fuel feed pipe (1) from the fuel tank fuel pump module (4) and from the fuel filter housing (3). Refer to Plastic Collar Quick Connect Fitting Service .
Remove the fuel return pipe (2) from the fuel tank fuel pump module (4). Refer to Plastic Collar Quick Connect Fitting Service .
Close all connections with EN-6015 plugs.

Fig 2: Fuel Pump Module Lock Ring

Courtesy of GENERAL MOTORS COMPANY

Install the EN-48279 remover/installer (1) to the fuel pump module lock ring (2).

NOTE:

Do NOT use impact tools. Significant force will be required to release the lock ring. The use of a hammer and screwdriver is not recommended. Secure the fuel tank in order to prevent fuel tank rotation.

Using the EN-48279 remover/installer and a long breaker-bar, rotate the lock ring in a counterclockwise direction in order to unlock the lock ring.

Fig 3: Fuel Pump Module Lock Ring

Courtesy of GENERAL MOTORS COMPANY

Remove the fuel pump module lock ring (1).

NOTE:

Lift the fuel pump module up slightly.

Remove the fuel pump module (2).
Remove and discard the fuel pump module seal (3).

Fig 4: Removing Fuel Filter From Fuel Filter Bracket

Courtesy of GENERAL MOTORS COMPANY

Remove the fuel filter (2) from the fuel filter bracket (1).
Remove the fuel tank heat shield. Refer to Fuel Tank Heat Shield Replacement .
Remove the fuel tank baffles. Refer to Fuel Tank Baffle Replacement .