GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 37088-A Fuel Line Disconnect Tool Set
    • J 44095 Fuel Pressure Adapter Fitting
    • SA9127E Gage Bar Set

Removal Procedure


    Object Number: 963963  Size: SH

    Caution: Do not allow smoking or the use of open flames in the area where work on the fuel or EVAP system is taking place. Anytime work is being done on the fuel system, disconnect the negative battery cable, except for those tests where battery voltage is required.

  1. Disconnect the negative battery cable.
  2. Loosen the clamp at the air cleaner assembly and throttle body assembly.
  3. Remove the attachment bolts from the outlet resonator/duct assembly to support bracket.
  4. Remove the outlet resonator/duct assembly.

  5. Object Number: 963185  Size: SH
  6. Remove the resonator outlet duct assembly bracket from the manifold.

  7. Object Number: 952269  Size: SH

    Caution: Whenever fuel line fittings are loosened or disconnected, wrap a shop cloth around the fitting to collect fuel. Place the cloth in an approved container.

  8. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  9. Disconnect the SA9127E or equivalent, and the J 44095 or equivalent, after the pressure has been relieved.
  10. Disconnect the fuel transfer line at quick connect from the fuel line using the J 37088-A , or equivalent.

  11. Object Number: 952252  Size: SH
  12. Remove the fuel rail bracket bolt to manifold at the rear of the intake manifold.

  13. Object Number: 959177  Size: SH
  14. Lift and support the intake manifold. Refer to Intake Manifold Replacement .

  15. Object Number: 952255  Size: SH

    Notice: An open-end wrench must be used to support the fuel line to rail connection during loosening/tightening to avoid damaging the fuel rail assembly.

  16. While supporting the fuel rail assembly with an open-end wrench, loosen the transfer line fitting at fuel rail.
  17. Remove the fuel line bracket bolt to manifold.

  18. Object Number: 952247  Size: SH
  19. Remove the fuel transfer line.

Installation Procedure


    Object Number: 952255  Size: SH
  1. Install the fuel transfer line into position.
  2. Notice: An open-end wrench must be used to support the fuel line to rail connection during loosening/tightening to avoid damaging the fuel rail assembly.

  3. Hand tighten both fuel transfer line fittings to fuel rails.
  4. Tighten
    Tighten the fuel transfer line fittings-to-fuel rail L81 to 15 N·m (11 lb ft).

  5. Install the fuel line bracket to manifold.
  6. Tighten
    Tighten the fuel line bracket-to-manifold bolt to 6 N·m (47 lb in).

  7. Install the intake manifold. Refer to Intake Manifold Replacement .

  8. Object Number: 952252  Size: SH
  9. Install the fuel transfer line bracket bolt intake manifold.
  10. Tighten
    Tighten the fuel transfer line bracket bolt-to-intake L81 to 4.4 N·m (39 lb in).


    Object Number: 963185  Size: SH
  11. Install the outlet resonator/duct assembly bracket to manifold.
  12. Install the outlet resonator/duct assembly bracket nuts.
  13. Tighten
    Tighten the outlet resonator/duct assembly bracket-to-intake manifold nuts L81 to 5 N·m (44 lb in).

    Important: An audible click can be heard when the fuel line is installed. Slightly pull rearward on the line to assure the connection is fully seated.

  14. Connect the fuel line to fuel transfer line.

  15. Object Number: 963963  Size: SH
  16. Install the outlet resonator/duct assembly into position.
  17. Tighten the clamp at the throttle body assembly.
  18. Position the outlet resonator/duct assembly to the support bracket and install the bolts.
  19. Tighten
    Tighten the outlet resonator/duct assembly-to-support bracket bolts L81 to 10 N·m (89 lb in).

  20. Tighten the clamp at the air cleaner assembly.
  21. Connect the negative battery cable.
  22. Tighten
    Tighten the battery terminal bolts to 17 N·m (13 lb ft).