Installation Procedure

Fig 1: View Of Primary Fuel Tank Module

Courtesy of GENERAL MOTORS CORP.

If replacing the fuel pump module only, install the primary fuel level sensor. Refer to Primary Fuel Level Sensor Replacement .
Install a NEW O-ring (2) and the primary fuel tank module (1).

Fig 2: Fuel Tank Sender Wrench & Cam Lock Ring

Courtesy of GENERAL MOTORS CORP.

Using the CH 48482: wrench, install the cam lock ring (1) by turning clockwise.
Install the secondary fuel pump module. Refer to Secondary Fuel Tank Module Replacement .

Fig 3: Evaporative Emission Lines & Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

Connect the electrical connectors (1) to the primary and secondary fuel tank modules.
Connect the fuel and evaporative emission lines (2). Refer to Plastic Collar Quick Connect Fitting Service .
Install the fuel tank. Refer to Fuel Tank Replacement .