Removal Procedure

CAUTION: Refer to Gasoline/Gasoline Vapors Caution .

Drain the fuel tank. Refer to Fuel Tank Draining .
Relieve the fuel system pressure. Refer to Fuel Pressure Relief (With CH 48027) or Fuel Pressure Relief (Without CH 48027) .
Remove the exhaust system. Refer to Exhaust System Replacement .
Remove the propeller shaft. Refer to Rear Propeller Shaft Replacement (RWD) or Rear Propeller Shaft Replacement (AWD) .

Fig 1: Identifying Fuel Filler Hose To Fuel tank

Courtesy of GENERAL MOTORS CORP.

Disconnect the filler hose (1) from the fuel tank.
Disconnect the filler vent tube (2) from the evaporative emission (EVAP) hose. Refer to Plastic Collar Quick Connect Fitting Service .

Fig 2: Fuel Filter

Courtesy of GENERAL MOTORS CORP.

Disconnect the fuel feed hoses (4 and 5) from the fuel filter. Refer to Metal Collar Quick Connect Fitting Service .
Disconnect the fuel EVAP hose (6) from the chassis bundle. Refer to Plastic Collar Quick Connect Fitting Service .

Fig 3: View Of Fuel Tank Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Fig 4: Identifying EVAP Hoses At EVAP Canister

Courtesy of GENERAL MOTORS CORP.

Disconnect the EVAP hoses from the EVAP canister.
Pull outward on the retainer tab in order to disengage the retainer from the chassis.
Disconnect the electrical connector from the EVAP canister vent solenoid valve.
Disconnect the fuel tank pressure sensor electrical connector from the EVAP canister.

Fig 5: Fuel Filter

Courtesy of GENERAL MOTORS CORP.

Remove the bolt (7) from the right side rear suspension bracket brace.
Loosen the nut (8) and allow the brace to swing downward. This will provide clearance while lowering the rear frame.

Fig 6: Left Side Rear Suspension Bracket Brace

Courtesy of GENERAL MOTORS CORP.

Remove the bolt (1) from the left side rear suspension bracket brace.
Loosen the nut (2) and allow the brace to swing downward. This will provide clearance while lowering the rear frame.

Fig 7: Identifying Support Fixture Components

Courtesy of GENERAL MOTORS CORP.

Raise the lower control arms using a suitable screw jack (3) in order to remove the load from the lower shock bolts (2).
Remove the lower shock bolts (2).
Remove the screw jack (3).

Fig 8: View Of Screw Jack Under Rear Frame

Courtesy of GENERAL MOTORS CORP.

Position the screw jack under the rear frame near the adjuster tie bar, in order to support the front of the rear frame.
Remove the 2 front bolts from the rear frame.

Fig 9: View Of Fuel Tank Strap Bolt Access Clearance

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Use care not to over extend the rear brake hoses.

Lower the screw jack until there is approximately 50 mm (2 in) (a) between the front mounting surface of the rear frame and the chassis.
This will allow clearance to access the fuel tank strap bolts.

Fig 10: View Of Fuel Tank Straps

Courtesy of GENERAL MOTORS CORP.

Remove the fuel tank strap bolts.
Position the fuel tank straps downward around the rear frame.
Carefully bend the fuel tank straps ONLY enough to allow the fuel tank to be removed.

IMPORTANT: Ensure the following are free from the surrounding components while lowering the fuel tank:

With the aid of an assistant, carefully lower the fuel tank from the vehicle.
If replacing the fuel tank, remove the primary and secondary fuel tank modules. Refer to Primary Fuel Tank Module Replacement and Secondary Fuel Tank Module Replacement .