GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Warning: Ensure that the vehicle is properly supported and squarely positioned. To help avoid personal injury when a vehicle is on a hoist, provide additional support for the vehicle on the opposite end from which the components are being removed.

Warning: 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.

Warning: Whenever fuel lines are removed, catch fuel in an approved container. Container opening must be a minimum of 300 mm (12  in) diameter to adequately catch the fluid.

Caution: Fuel/Vapor lines cannot be spliced or repaired. The line must be replaced (if damaged) with the same type of line.


    Object Number: 1886167  Size: SH
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  3. Disconnect the chassis fuel feed line quick connect fitting (2) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service.
  4. Disconnect the chassis evaporative emission (EVAP) line quick connect fitting (1) from the EVAP canister purge solenoid valve. Refer to Plastic Collar Quick Connect Fitting Service.

  5. Object Number: 1885596  Size: SH
  6. Remove the brake, fuel and EVAP line retainers (1) from the underbody and side rail.
  7. Remove the brake, fuel and EVAP line retainers (2) from the underbody studs.
  8. Remove the brake line retainers (3) from the underbody side rail.

  9. Object Number: 1886168  Size: SH
  10. Remove the brake, fuel and EVAP line bundle (1) from the vehicle.

  11. Object Number: 1886171  Size: SH
  12. Remove the chassis EVAP line (2) from the retainers.

Installation Procedure


    Object Number: 1886171  Size: SH
  1. Install the chassis EVAP line (2) to the retainers.

  2. Object Number: 1886168  Size: SH
  3. Install the brake, fuel and EVAP line bundle (1) to the vehicle.

  4. Object Number: 1885596  Size: SH
  5. Install the brake, fuel and EVAP line retainers (1) to the underbody and side rail.
  6. Install the brake, fuel and EVAP line retainers (2) to the underbody studs.
  7. Install the brake line retainers (3) to the underbody side rail.

  8. Object Number: 1886167  Size: SH
  9. Connect the chassis fuel feed line quick connect fitting (2) to the fuel rail. Refer to Metal Collar Quick Connect Fitting Service.
  10. Connect the chassis EVAP line quick connect fitting (1) to the EVAP canister purge solenoid valve. Refer to Plastic Collar Quick Connect Fitting Service.
  11. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  12. Use the following procedure in order to inspect for leaks:
  13. 9.1. Turn the ignition ON, with the engine OFF, for 2 seconds.
    9.2. Turn the ignition OFF for 10 seconds.
    9.3. Turn the ignition ON, with the engine OFF.
    9.4. Inspect for fuel leaks.
  14. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.