Removal Procedure

WARNING: This page is about a different variant/trim than selected.

Disconnect the fuel feed and pressure balance rear lines. Refer to Quick Connect Fitting(s) Service (Metal Collar) .

Fig 1: View Of Fuel Feed And Pressure Balance Lines
Courtesy of GENERAL MOTORS CORP.
Loosen the fuel fill and vent hose clamps (1, 2) at the fuel tank.

Fig 2: View Of Fuel Fill Pipe Clamp & Vent Pipe Clamp
Courtesy of GENERAL MOTORS CORP.
Remove the fuel fill pipe and vent hose from the tank.
Drain the fuel tank. Refer to Fuel Tank Draining Procedure .

Fig 3: Fuel Pressure Sensor Electrical Connector & Fuel Sending Unit Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Fig 4: Fuel Feed & EVAP Quick Connect Fittings At Sending Unit

Courtesy of GENERAL MOTORS CORP.

Disconnect the fuel feed and return lines from the fuel tank. Refer to Quick Connect Fitting(s) Service (Metal Collar) .
Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

Fig 5: Fuel Tank Shield & Bolts (Cab/Chassis - Front)

Courtesy of GENERAL MOTORS CORP.

Fig 6: Fuel Tank, Strap & Bolts (Cab/Chassis - Front)

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fuel Tank Strap Fastener Notice in Cautions and Notices.

Remove the fuel tank strap bolts.
Remove the fuel tank straps.
Lower the fuel tank.
With the aid of an assistant, place the fuel tank in a suitable work area.
Cap the fuel lines on the vehicle in order to prevent possible fuel system contamination.
If replacing the fuel tank, remove the sending unit. Refer to Fuel Sender Assembly Replacement .