GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

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

Notice: 

   • 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.


    Object Number: 43560  Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  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 .

  4. Object Number: 329571  Size: SH
  5. Disconnect the fuel feed hose (2) from the chassis fuel feed pipe (3). Refer to Metal Collar Quick Connect Fitting Service .

  6. Object Number: 329579  Size: SH
  7. Disconnect the engine compartment EVAP pipe (1) from the chassis EVAP pipe (2). Refer to Plastic Collar Quick Connect Fitting Service .

  8. Object Number: 329553  Size: SH
  9. Disconnect the chassis fuel and EVAP pipe retainer (1) from the upper front of dash mounting stud (3).

  10. Object Number: 327658  Size: SH
  11. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  12. Remove the exhaust intermediate pipe. Refer to Intermediate Pipe Replacement in Engine Exhaust.
  13. Remove the driveline tunnel closeout panel. Refer to Floor Panel Tunnel Panel Reinforcement Replacement in Propeller Shaft.
  14. Remove the fuel filter/pressure regulator bracket nut (2).
  15. Disconnect the fuel system ground strap from the fuel filter/pressure regulator mounting stud.

  16. Object Number: 329560  Size: SH
  17. Disconnect the chassis fuel feed pipe (3) from the fuel filter/pressure regulator. Refer to Plastic Collar Quick Connect Fitting Service .
  18. Cap the open end of the fuel filter/pressure regulator (2).

  19. Object Number: 329558  Size: SH
  20. Disconnect the rear EVAP pipe (1) at the chassis EVAP pipe (3). Refer to Plastic Collar Quick Connect Fitting Service .
  21. Cap the rear EVAP pipe.

  22. Object Number: 329574  Size: SH
  23. Remove the chassis EVAP pipe (4) underbody retainer nuts (3).
  24. Remove the chassis EVAP pipe (4) from the underbody retainers (2).
  25. Disconnect the chassis fuel pipe (5) and the EVAP pipe (4) from the underbody retainers (6).
  26. Remove the chassis fuel and EVAP pipes.

Installation Procedure

Important: 

   • Follow the same routing as the original pipes.
   • Secure the pipes in order to prevent chafing.
   • Do not kink or bend the pipes.


    Object Number: 329574  Size: SH
  1. Install the chassis fuel pipe (5) and the EVAP pipe (4) into the underbody retainers (6).
  2. Install the chassis EVAP pipe (4) into the underbody retainers (2).
  3. Install the underbody retainers (2) on the mounting studs (1).
  4. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the chassis EVAP pipe (4) underbody retainer nuts (3).
  6. Tighten
    Tighten the EVAP pipe retainer nuts to 3 N·m (27 lb in).


    Object Number: 329558  Size: SH
  7. Uncap the rear EVAP pipe.
  8. Connect the rear EVAP pipe (1) to the chassis EVAP pipe (3). Refer to Plastic Collar Quick Connect Fitting Service .

  9. Object Number: 329560  Size: SH
  10. Uncap the fuel filter/pressure regulator outlet.
  11. Connect the chassis fuel feed pipe (3) to the fuel filter/pressure regulator (2). Refer to Plastic Collar Quick Connect Fitting Service .

  12. Object Number: 107570  Size: SH
  13. Engage the anti-rotation tab (3) of the fuel filter/pressure regulator bracket (2) into the hole of the tunnel reinforcement (1).

  14. Object Number: 327658  Size: SH
  15. Connect the fuel system ground strap to the fuel filter/pressure regulator mounting stud.
  16. Install the fuel filter/pressure regulator bracket nut (2).
  17. Tighten
    Tighten the fuel filter/pressure regulator bracket nut to 4.5 N·m (40 lb in).

  18. Install the driveline tunnel closeout panel. Refer to Floor Panel Tunnel Panel Reinforcement Replacement in Propeller Shaft.
  19. Install the exhaust intermediate pipe. Refer to Intermediate Pipe Replacement in Engine Exhaust.
  20. Lower the vehicle.

  21. Object Number: 329553  Size: SH
  22. Connect the chassis fuel and EVAP pipe retainer (1) at the upper front of dash mounting stud (3).
  23. Tighten
    Tighten the fuel and EVAP pipe retainer nut to 3 N·m (27 lb in).


    Object Number: 329579  Size: SH
  24. Connect the engine compartment EVAP pipe (1) to the chassis EVAP pipe (2). Refer to Plastic Collar Quick Connect Fitting Service .

  25. Object Number: 329571  Size: SH
  26. Connect the fuel feed hose (2) to the chassis fuel feed pipe (3). Refer to Metal Collar Quick Connect Fitting Service .
  27. Tighten the fuel filler cap.
  28. Connect the negative battery cable.
  29. Inspect for leaks.
  30. 20.1. Turn the ignition switch ON for 2 seconds.
    20.2. Turn the ignition switch OFF for 10 seconds.
    20.3. Turn the ignition switch ON.
    20.4. Check for fuel leaks.
  31. Program the transmitters. Refer to Transmitter Programming/Synchronization in Keyless Entry.
  32. Perform the idle learn procedure. Refer to PCM Idle Learn Procedure .