Removal Procedure

IMPORTANT: Clean the fuel and evaporative emission (EVAP) connections and surrounding areas prior to disconnecting the lines in order to avoid possible system contamination.

Fig 1: View Of Fuel Feed & EVAP Lines At Fuel Tank

Courtesy of GENERAL MOTORS CORP.

Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
Drain the fuel tank. Refer to Fuel Tank Draining Procedure (Single Tank) or Fuel Tank Draining Procedure (5.3L (L59) Engine) or Fuel Tank Draining Procedure (Dual Tanks - Front) or Fuel Tank Draining Procedure (Dual Tanks - Rear) .
Disconnect the vent hose quick connect fitting from the fuel tank. Refer to Quick Connect Fitting(s) Service (Plastic Collar)
Disconnect the fuel feed and EVAP lines from the fuel tank lines. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
Cap the fuel and EVAP lines in order to prevent possible fuel and/or EVAP system contamination.

Fig 2: View Of EVAP Lines At EVAP Canister

Courtesy of GENERAL MOTORS CORP.

Disconnect the EVAP lines from the EVAP canister. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .

Fig 3: View Of Fuel Tank & Straps (Single Tank)

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Damage to Fuel Tank Straps Notice in Cautions and Notices.

Using an adjustable jack, support the fuel tank.
Remove the fuel tank strap bolts.
Remove the fuel tank straps.
With the aid of an assistant, carefully lower the rear of the fuel tank.
Slide the front of the tank away from the frame.
Lower the fuel tank slightly until the electrical connectors can be accessed.

Fig 4: View Of Fuel Sender & Fuel Pressure Sensor Electrical Connectors (Single Tank)

Courtesy of GENERAL MOTORS CORP.

Disengage the sending unit connector position assurance (CPA) retainer.
Disconnect the sending unit and fuel pressure sensor electrical connectors.
Completely lower the fuel tank.
With the aid of an assistant, Place the fuel tank in a suitable work area.

Fig 5: View Of Fuel Feed & EVAP Lines Clip

Courtesy of GENERAL MOTORS CORP.

If necessary, open the clip on the fuel tank and remove the fuel feed and EVAP lines.
If necessary, remove the fuel sending unit. Refer to Fuel Sender Assembly Replacement (4.8L and 5.3L Engines) or Fuel Sender Assembly Replacement (5.3L (L59) Engine) or Fuel Sender Assembly Replacement (6.0L Engine - Dual Tanks - Front) or Fuel Sender Assembly Replacement (6.0L Engine - Dual Tanks - Rear) .