Removal Procedure

Fig 1: View Of EVAP Lines At Fuel Tank Module (Rear Tank)

Courtesy of GENERAL MOTORS CORP.

Remove the rear fuel tank. Refer to Fuel Tank Replacement (Front Tank) or Fuel Tank Replacement (Rear Tank) .
Disconnect the evaporative emission (EVAP) lines from the fuel tank module. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .

Fig 2: Rotating Lock Ring Using J 45722 (Rear Tank)

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Ensure that the tool does not come in contact with the module pipes while unlocking the lock ring.

Using J 45722 , rotate the lock ring counterclockwise in order to unlock the ring.
Remove the J 45722 and the lock ring.

Fig 3: View Of Vapor Line Quick Connect Fittings (Rear Tank)

Courtesy of GENERAL MOTORS CORP.

Carefully lift the fuel tank module from the fuel tank, enough to access the quick connect fittings below the module cover.
Disconnect the vapor line quick connect fittings, in order to remove the module. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
Remove the module from the fuel tank.
Remove and discard the fuel tank module seal.