GM Service Manual Online
For 1990-2009 cars only

Vent Hose Replacement Rear Wheel Drive

Removal Procedure


    Object Number: 1848887  Size: SH
  1. Remove the air inlet housing front panel to gain access to the vent hose upper retainer. Refer to Air Inlet Grille Panel Replacement .

  2. Object Number: 1850370  Size: SH
  3. Remove the vent hose from the retainer (3) located on the rear of the right cylinder head.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  5. Remove the vent hose from the retainers (6) located on the transmission mount assembly.
  6. Support the transmission with a suitable jack.
  7. Remove the transmission mount assembly. Refer to Transmission Mount Replacement .
  8. Cut the tie straps (1) that secure the vent hose to the transmission wiring harness.
  9. Lower the transmission and remove the vent hose from the vent tube (2).
  10. Remove the vent hose assembly from the vehicle.

Installation Procedure


    Object Number: 1850370  Size: SH
  1. Install the vent hose assembly to the vehicle.
  2. Connect the vent hose to the vent tube (2).
  3. Raise the transmission to the installed position.
  4. Install new tie straps (1) to secure the vent hose to the transmission wiring harness. Do not collapse the vent hose while tightening the tie straps.
  5. Install the transmission mount assembly. Refer to Transmission Mount Replacement .
  6. Remove the jack.
  7. Install the vent hose to the retainers (6) located on the mount assembly.
  8. Lower the vehicle.
  9. Install the vent hose to the retainer (3) located on the rear of the right cylinder head.

  10. Object Number: 1848887  Size: SH
  11. Install the air inlet housing front panel. Refer to Air Inlet Grille Panel Replacement .

Vent Hose Replacement All Wheel Drive

Removal Procedure


    Object Number: 1848887  Size: SH
  1. Remove the air inlet housing front panel to gain access to the vent hose upper retainer. Refer to Air Inlet Grille Panel Replacement .

  2. Object Number: 1998615  Size: SH
  3. Remove the vent hose from the retainer (3) located on the rear of the right cylinder head.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  5. Remove the vent hose from the retainers (4) located on the transmission mount assembly.
  6. Support the transmission with a suitable jack.
  7. Remove the transmission mount assembly. Refer to Transmission Mount Replacement .
  8. Cut the tie straps (1) that secure the vent hose to the transmission wiring harness.
  9. Lower the transmission and remove the vent hose from the vent tube (2).
  10. Remove the vent hose assembly from the vehicle.

Installation Procedure


    Object Number: 1998615  Size: SH
  1. Install the vent hose assembly to the vehicle.
  2. Connect the vent hose to the vent tube (2).
  3. Raise the transmission to the installed position.
  4. Install new tie straps (1) to secure the vent hose to the transmission wiring harness. Do not collapse the vent hose while tightening the tie straps.
  5. Install the transmission mount assembly. Refer to Transmission Mount Replacement .
  6. Remove the jack.
  7. Install the vent hose to the retainers (4) located on the mount assembly.
  8. Lower the vehicle.
  9. Install the vent hose to the retainer (3) located on the rear of the right cylinder head.

  10. Object Number: 1848887  Size: SH
  11. Install the air inlet housing front panel. Refer to Air Inlet Grille Panel Replacement .