GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Terraza Ext. 🢒 Body 🢒 Wipers/Washer Systems 🢒 Rear Window Washer Pump Hose Replacement - Washer Pump to Liftgate

Removal Procedure
  1. Remove the right cowl trim panel. Refer to Cowl Side Trim Panel Replacement.
  2. Remove the right center lower trim panel. Refer to Center Pillar Lower Trim Panel Replacement.
  3. Remove the right rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Right Side.

    4. Object Number: 512031 Size: SH
  4. Disconnect the rear washer hose from the rear washer pump.
  5. Disconnect the rear washer hose from the washer solvent container.

    6. Object Number: 1480128 Size: SH
  6. Disengage the washer hose grommet (1) from the dash panel below the plenum in behind the wiper module.

    7. Object Number: 776381 Size: SH
  7. Cut the tape securing the washer hose to the electrical harness loom for the full length back to the D-pillar hose connection
  8. Disconnect the hose from retainers in the rear quarter.

    9. Object Number: 1480131 Size: SH
  9. Partially lower the headliner at rear of vehicle to access the washer hose at the jumper. Refer to Headlining Trim Panel Replacement .
  10. Disconnect the washer hose (1) at the liftgate jumper hose connection (2).
  11. Pull the rear washer hose end out through the opening in the dash panel.
  12. Remove the rear washer hose from the right side of the vehicle.

Installation Procedure

    Object Number: 1480129 Size: SH
  1. Route the rear washer hose (1) along the right side of the vehicle and secure the retention clips (2).

    2. Object Number: 1480131 Size: SH
  2. Apply washer solvent to the rear washer hose ends in order to secure to the liftgate connection (3).
  3. Position the headliner and secure in place. Refer to Headlining Trim Panel Replacement .
  4. Install the rear washer hose end through the opening in the dash panel.
  5. Tape the washer hose to the electrical harness loom approximately every 101.6-127 mm (4-5 in) apart beginning at the rear and working forward to the washer hose dash panel grommet.

    6. Object Number: 1480128 Size: SH
  6. Secure the washer hose grommet (2) to the front dash panel (1).

    7. Object Number: 512031 Size: SH
  7. Connect the forward portion of the rear washer hose to the washer solvent container, rear washer pump spout.
  8. Install the rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Right Side.
  9. Install the lower center trim panel. Refer to Center Pillar Lower Trim Panel Replacement.
  10. Install the right cowl trim panel. Refer to Cowl Side Trim Panel Replacement.