Installation Procedure

Fig 1: Primary Fuel Tank Module Seal Ring

Courtesy of GENERAL MOTORS CORP.

Install a NEW fuel tank seal (1) to the fuel tank assembly (2).

Fig 2: Transfer Tube And Fuel Tank Module

Courtesy of GENERAL MOTORS CORP.

NOTE:

Do not damage the fuel level sensor float rod (3) when installing the secondary fuel tank module (1).

Carefully install the secondary fuel tank module (1) into the fuel tank (2), enough to connect the transfer tube (4) to the secondary fuel tank module (1).

NOTE:

Listen for an audible click to confirm the correct installation of the transfer tube connector (4) to the secondary fuel tank module (1).

Connect the transfer tube (4) to the secondary fuel tank module (1).
Carefully manoeuvre and install the secondary fuel tank module (1) to the fuel tank assembly (2).

Fig 3: Cam Lock Ring And Secondary Fuel Tank Module

Courtesy of GENERAL MOTORS CORP.

NOTE:

Apply suitable pressure onto the secondary fuel tank module (3) to hold the secondary fuel tank module (3) in position while installing the NEW cam lock ring (2).

Install a NEW cam lock ring (2) to the secondary fuel tank module (3) by rotating the cam lock ring (2) clockwise using the fuel tank sender wrench CH-48482 fuel tank sender wrench (1).

Fig 4: Electrical Harness Connector

Courtesy of GENERAL MOTORS CORP.

NOTE:

Listen for an audible click to confirm the correct installation of the electrical harness connector (2) to the secondary fuel tank module (1).

Connect the electrical harness connector (2) to the secondary fuel tank module (1).
Install the fuel tank assembly to the vehicle. Refer to Fuel Tank Replacement .
Lower the vehicle. Refer to Lifting and Jacking the Vehicle .
Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Primary) , Battery Negative Cable Disconnection and Connection (Auxiliary) .