Fuel Hose/Pipes Replacement - Chassis

FUEL HOSE/PIPES REPLACEMENT - CHASSIS

TOOLS REQUIRED
- J 34730-1A Fuel Pressure Gauge
- J 37088-A Tool Set, Fuel Line Quick-Connect Separator

REMOVAL PROCEDURE

CAUTION: Refer to the Battery Disconnect Caution in Service Precautions.




1. Disconnect the negative battery cable.
2. Remove the left fuel rail cover.
3. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure.

NOTE:
- Do not repair the fuel feed or return pipes.
- Replace the fuel feed and return pipes with original equipment or with parts that meet the GM specifications for those parts. The replacement pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection.




4. Disconnect the fuel hose (2) from the chassis fuel feed pipe (3).
5. Cap the engine compartment fuel feed pipe.




6. Disconnect the chassis fuel and EVAP pipe retainer (1) from the upper front of dash mounting stud (3).

CAUTION: Refer to Vehicle Lifting Caution in Service Precautions.




7. Raise the vehicle. Refer to Vehicle Lifting.
8. Remove the exhaust intermediate pipe.




9. Remove the driveline tunnel closeout panel.




10. Disconnect the chassis fuel pipe (5) from the underbody retainers (6).
11. Remove the chassis fuel pipe.

INSTALLATION PROCEDURE

IMPORTANT:
- Follow the same routing as the original pipe.
- Secure the pipe in order to prevent chafing.
- Do not kink or bend the pipe.




1. Install the chassis fuel pipe (5) into the underbody retainers (6).




2. Install the driveline tunnel closeout panel.




3. Install the exhaust intermediate pipe.
4. Lower the vehicle.
5. Remove the cap from the engine compartment fuel feed pipe.

NOTE: Refer to the Fastener Notice in Service Precautions.




6. Connect the chassis fuel and EVAP pipe retainer (1) at the upper front of dash mounting stud (3).

Tighten
Tighten the fuel and EVAP pipe retainer nut to 6 N.m (53 lb in).




7. Connect the fuel feed hose (2) to the chassis fuel feed pipe (3).
8. Tighten the fuel filler cap.
9. Connect the negative battery cable.
10. Perform the following procedure in order to inspect for leaks:
10.1. Turn the ignition switch ON for 2 seconds.
10.2. Turn the ignition switch OFF for 10 seconds.
10.3. Turn the ignition switch ON.
10.4. Inspect for fuel leaks.

11. Install the left fuel rail cover.
12. Program the transmitters. Refer to Transmitter Programming in Keyless Entry.