Workshop Repair and Service Manuals GMC SIERRA
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Fuel Line Replacement - Chassis (Pickup)

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Removal Procedure

Fuel Line Replacement - Chassis (Pickup)

Disconnect the fuel feed and return lines. Refer toMetal Collar Quick Connect Fitting Service.Remove the fuel line bracket nut.Remove the fuel line bracket from the stud.Raise and suitably support the vehicle. Refer toLifting and Jacking the Vehicle.

Fuel Line Replacement - Chassis (Pickup)

Remove the fuel bundle clip-(2) from thetransmission brackets-(1).Disconnect the chassis harness from the retainingclips.

Fuel Line Replacement - Chassis (Pickup)

Disconnect the fuel feed and return lines from the fuel tanklines. Refer toPlastic Collar Quick Connect Fitting Service.

Fuel Line Replacement - Chassis (Pickup)

Remove the fuel bundle nuts from the chassis.

Fuel Line Replacement - Chassis (Pickup)

Loosen the electronic brake control module (EBCM) bracketbolts (4).Allow the EBCM to remain loose in order to allow fuel pipeclearance.Remove the fuel bundle using the following procedure:Guide the fuel bundle pipes towards the rear of the vehicleto clear the engine.Lower the fuel bundle while moving it forward and out.Installation Procedure

Fuel Line Replacement - Chassis (Pickup)

Install the fuel pipe bundle using the followingprocedure:Install the fuel bundle to the chassis by guiding the pipestowards the rear of vehicle.Lift the fuel pipes, while guiding the forward portion of thepipes up towards the engine connections.

Caution:Refer toFastener Caution.

Install the fuel bundle nuts to the chassis and tighten to16-Y(12-lb-ft).

Fuel Line Replacement - Chassis (Pickup)

Connect the fuel feed and return lines to the fuel tanklines. Refer toPlastic Collar Quick Connect Fitting Service.

Fuel Line Replacement - Chassis (Pickup)

Connect the fuel bundle clip-(2) to thetransmission brackets-(1).

Fuel Line Replacement - Chassis (Pickup)

Tighten the EBCM bracket bolts-(4) to25-Y(18-lb-ft).Lower the vehicle.

Fuel Line Replacement - Chassis (Pickup)

Install the fuel line bracket to the stud.Install the fuel line bracket nut and tighten to16-Y(12-lb-ft).Connect the fuel feed and return lines. Refer toMetal Collar Quick Connect Fitting Service.Prime the fuel system. Refer toFuel System Priming.Start the engine. If the engine stalls, repeat the abovestep.Once the engine starts, inspect for fuel leaks.

Fuel Tank Filler Hose Replacement (Cab Chassis)     Removal Procedure Drain the fuel below the fuel fill neck. Refer toFuel Tank Draining.Remove the filler housing fasteners-(1). Remove the filler hose ground fastener-(1).Loosen the hose clamps-(2).Remove the fuel tank...
Fuel Line Replacement - Chassis (Cab Chassis with Balance Pump)     Removal Procedure Remove the front and auxiliary fuel tanks. Refer toFuel Tank Replacement.Disconnect the pressure balance pump electricalconnector. Remove the fuel bundle nuts.Remove the fuel bundle.Installation...
Fuel Line Replacement - Chassis (Regular Cab)     Removal Procedure Note:Clean all fuel and evaporative emission (EVAP) linesconnections and surrounding areas prior to disconnecting the linesin order to avoid possible fuel and/or EVAP systemcontamination. Relieve the fuel...
Exhaust Seal Replacement (ZW9 Cab Chassis)     Removal Procedure Remove the left catalytic converter, if required. Refer toCatalytic Converter Replacement - Left Side.Remove the exhaust manifold pipe, if required. Refer toExhaust Manifold Pipe Replacement.Remove and...
Fuel Tank Replacement (Cab Chassis - Front)     Removal ProcedureRaise and suitably support the vehicle. Refer toLifting and Jacking the Vehicle. Disconnect the fuel and evaporative emission lines-(1). If equipped, disconnect therear connections. Refer toPlastic Collar...
Fuel Tank Replacement (Cab Chassis - Rear)     Removal Procedure Loosen the fuel fill and vent hose clamps-(1,-2) at the tank.Remove the fuel fill and vent hose from the tank.Drain the fuel tank. Refer toFuel Tank Draining. Disconnect the sending unit electrical...