GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 45059 Angle Meter

Removal Procedure


    Object Number: 1683133  Size: SH
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief.
  3. Disconnect the evaporative emission (EVAP) pipe (2) quick connect fitting from the purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service.

  4. Object Number: 1683101  Size: SH
  5. Cap or plug the EVAP pipe and the purge solenoid in order to prevent system contamination.
  6. Open the upper retainer (1) and remove the EVAP pipe from the retainer.
  7. Open the retainers (2, 3) attached to the studs on the front of dash and remove the EVAP pipe.
  8. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  9. Object Number: 1580724  Size: SH
  10. Disconnect the EVAP pipe (1) quick connect fitting from the fuel tank EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service.

  11. Object Number: 1580124  Size: SH
  12. Remove the side rail reinforcement bolts (1).

  13. Object Number: 1580120  Size: SH
  14. Remove the front frame bolts (1).
  15. Remove the side rail reinforcements (3).

  16. Object Number: 1578470  Size: SH
  17. Remove the rear brake pipe bracket nuts and release the brackets from the body studs.
  18. Release the pipe retainers from the vehicle underbody.
  19. Remove the EVAP pipe from the retainers.
  20. Lower the rear of the pipe while moving the pipe rearward slightly, then lower the front of the pipe.
  21. Remove the EVAP pipe from the vehicle.

Installation Procedure


    Object Number: 1578470  Size: SH
  1. Position the EVAP pipe to the vehicle.
  2. With the rear of the pipe positioned slightly rearward and down, raise the front of the pipe into position.
  3. Install the remainder of the pipe into position.
  4. Install the EVAP pipe to the pipe retainers.
  5. Secure the pipe retainers to the vehicle underbody.

  6. Object Number: 1580120  Size: SH
  7. Position the side rail reinforcements (3) to the side rail and frame.
  8. Notice: Refer to Fastener Notice in the Preface section.

  9. Install the front frame bolts (1).
  10. Tighten
    Tighten the bolts to 100 N·m (73 lb ft) plus an additional 180 degrees using J 45059 .


    Object Number: 1580124  Size: SH
  11. Install the side rail reinforcement bolts (1).
  12. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).


    Object Number: 1580724  Size: SH
  13. Connect the EVAP pipe (1) quick connect fitting to the fuel tank EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service.

  14. Object Number: 1683101  Size: SH
  15. Lower the vehicle.
  16. Remove the caps or plugs from the EVAP pipe and the purge solenoid.
  17. Install the EVAP pipe to the retainers (2, 3) and close the retainers.
  18. Install the EVAP pipe to the upper retainer (1) and close the retainer.

  19. Object Number: 1683133  Size: SH
  20. Connect the EVAP pipe (2) quick connect fitting to the purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service.
  21. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  22. Inspect for fuel leaks using the following procedure:
  23. 16.1. Turn ON the ignition, with the engine OFF for 2 seconds.
    16.2. Turn OFF the ignition for 10 seconds.
    16.3. Turn ON the ignition, with the engine OFF.
    16.4. Inspect for fuel leaks.
  24. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement.