GM Service Manual Online
For 1990-2009 cars only

Evaporative Emission Hoses/Pipes Replacement - Chassis/Canister W/Left Fuel Tank

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 728517  Size: SH
  3. Disconnect the chassis EVAP purge pipe (7) from the engine EVAP purge pipe (3). Refer to Plastic Collar Quick Connect Fitting Service .

  4. Object Number: 728962  Size: SH
  5. Disconnect the chassis EVAP purge pipe (2) from the EVAP canister.
  6. Remove the three retaining straps (1) and spacers from the fuel pipe bundle.
  7. Remove the EVAP purge pipe.

Installation Procedure


    Object Number: 728962  Size: SH
  1. Position the EVAP purge pipe to the chassis.
  2. Install the spacers and three new retaining straps (1) to the fuel pipe bundle and chassis brackets.
  3. Connect the chassis EVAP purge pipe (2) to the EVAP canister.

  4. Object Number: 728517  Size: SH
  5. Connect the chassis EVAP purge pipe (7) to the engine EVAP purge pipe (3). Refer to Plastic Collar Quick Connect Fitting Service .
  6. Lower the vehicle.

Evaporative Emission Hoses/Pipes Replacement - Chassis/Canister W/Right Fuel Tank

Removal Procedure

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 728517  Size: SH
  3. Disconnect the chassis EVAP purge pipe (7) from the engine EVAP purge pipe (3). Refer to Plastic Collar Quick Connect Fitting Service .

  4. Object Number: 728962  Size: SH
  5. Disconnect the chassis EVAP purge pipe (2) from the EVAP canister.
  6. Remove the three retaining straps (1) and spacers from the fuel pipe bundle.
  7. Remove the EVAP purge pipe.

Installation Procedure


    Object Number: 728962  Size: SH
  1. Position the EVAP purge pipe to the chassis.
  2. Install the spacers and three new retaining straps (1) to the fuel pipe bundle and chassis brackets.
  3. Connect the chassis EVAP purge pipe (2) to the EVAP canister.

  4. Object Number: 728517  Size: SH
  5. Connect the chassis EVAP purge pipe (7) to the engine EVAP purge pipe (3). Refer to Plastic Collar Quick Connect Fitting Service .
  6. Lower the vehicle.