Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: In order to reduce the risk of fire and personal injury, before connecting fuel pipe fittings, always apply a few drops of clean engine oil to the male pipe ends.
This will ensure proper reconnection and prevent a possible fuel leak.
During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.

Apply a few drops of clean engine oil to the male connection end.

Fig 1: Oiling Male Pipe Ends (Metal Collar)

GM12784

Courtesy of GENERAL MOTORS CORP.

Push both sides of the fittings together in order to snap the retaining tabs into place.

Fig 2: Assembling Connectors (Metal Collar)

GM12786

Courtesy of GENERAL MOTORS CORP.

Once installed, pull on both sides of the connection in order to make sure the connection is secure.

Fig 3: Ensuring Connection (Metal Collar) Is Secure

GM12787

Courtesy of GENERAL MOTORS CORP.

If equipped with the 5.3L (L59) engine, install the retainers to the fuel feed and return line to engine quick-connect fittings.

Fig 4: Removing/Installing Fuel Line Quick-Connect Fittings

GM855744

Courtesy of GENERAL MOTORS CORP.

Install the retainer to the fuel feed line quick-connect fitting.

Fig 5: Fuel Feed Line To Engine Quick-Connect Fitting Retainer

GM1238589

Courtesy of GENERAL MOTORS CORP.

Install the fuel fill cap.
Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.