Removal Procedure

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

Disconnect 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.
Remove the fuel fill cap.
Remove the retainers from the fuel feed and return pipe quick connect fittings.

Fig 1: View Of Fuel Lines At Engine
Courtesy of GENERAL MOTORS CORP.

CAUTION: Wear safety glasses when using compressed air, as flying dirt particles may cause eye injury.

Fig 2: Blowing Dirt Out Of Fitting (Metal Collar)

Courtesy of GENERAL MOTORS CORP.

Using compressed air, blow any dirt or debris from around the fitting.
Using the correct end of J 44581 for the size of the fitting. See Special Tools . Insert J 44581 into the female connector, then push inward in order to release the locking tabs. See Special Tools .

Fig 3: Releasing Quick Connect Locking Tabs (Metal Collar)
Courtesy of GENERAL MOTORS CORP.
If the vehicle is a cab/chassis, it may be necessary to use J 43178 in order to release the quick connect fittings at the sending unit.

Fig 4: Releasing Quick Connect Locking Tabs (Metal Collar)

Courtesy of GENERAL MOTORS CORP.

Pull the connection apart.
Use a clean shop towel in order to wipe off the male end.
NOTE: If necessary, remove rust or burrs from the fuel pipes with an emery cloth. Use a radial motion with the fuel pipe end in order to prevent damage to the O-ring sealing surface. Use a clean shop towel in order to wipe off the male tube ends. Inspect all the connections for dirt and burrs. Clean or replace the components and assemblies as required.
Inspect both ends of the fitting for dirt and burrs. Clean or replace the components as required.