GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 49594  Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .

  2. Object Number: 486596  Size: SH
  3. Remove the hardware retaining the EVAP pipes, if applicable.
  4. Inspect the location of the attaching hardware for installation.
  5. Remove the EVAP pipe/hoses.
  6. Inspect the pipe/hoses for bends, kinks, and cracks.
  7. Replace the pipes/hoses as required.

Installation Procedure


    Object Number: 486596  Size: SH

    Notice: Properly secure the EVAP pipe in order to prevent chafing of the pipe.

  1. Install the EVAP pipe/hoses.
  2. Install the hardware retaining the EVAP pipe/hoses.

  3. Object Number: 49594  Size: SH
  4. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .