Installation Procedure

Fig 1: Fuel Tank Module

Courtesy of GENERAL MOTORS CORP.

Install a NEW fuel tank module O-ring seal (3) onto the fuel tank.

NOTE:

The bucket must be tipped slightly during installation to avoid bending the fuel level sensor float arm.

Tilt the module toward the left side of the fuel tank to allow the fuel level sensor float arm to clear the tank opening. Install the module into the fuel tank.
Lower the module assembly (2) into the tank.
Position and install the fuel tank module lock ring (1).

Fig 2: Fuel Tank Module Lock Ring

Courtesy of GENERAL MOTORS CORP.

Install the J 45722 fuel sender lock nut wrench (1) to the fuel tank module lock ring.

Fig 3: Rotating Lock Ring

Courtesy of GENERAL MOTORS CORP.

NOTE:

Always replace the fuel tank module seal when installing the fuel tank module. Replace the lock ring if necessary. DO NOT apply any type of lubrication in the seal groove.

Ensure the lock ring is installed with the correct side facing upward. A correctly installed lock ring will only turn in a counterclockwise direction.

Using the J 45722 fuel sender lock nut wrench, and a long breaker-bar, rotate the lock ring counterclockwise, locking the fuel tank module lock ring.

Fig 4: Fuel Tank Module Lock Ring

Courtesy of GENERAL MOTORS CORP.

Remove the J 45722 fuel sender lock nut wrench (1).

Fig 5: Fuel Tank Fuel Feed Pipe Quick Connect Fittings

Courtesy of GENERAL MOTORS CORP.

Position the fuel and EVAP pipe ends to the module.
Connect the EVAP front pipe quick connect fitting (3) to the module. Refer to Plastic Collar Quick Connect Fitting Service .
Connect the EVAP pipe quick connect fitting (2) to the module. Refer to Plastic Collar Quick Connect Fitting Service .
Connect the fuel tank fuel feed pipe quick connect fitting (1) to the module. Refer to Plastic Collar Quick Connect Fitting Service .
Install the fuel tank. Refer to Fuel Tank Replacement (E26) , Fuel Tank Replacement (Without E26) .