GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 604730  Size: SH
  1. Remove the instrument panel (IP) carrier. Refer to Instrument Panel Carrier Replacement .
  2. Disconnect the yellow vacuum hose (1) and red vacuum hose (2) from the mode actuator.
  3. Note the location of the hoses.


    Object Number: 604614  Size: SH
  4. Remove the air inlet actuator.
  5. 3.1. Lift the actuator lock tab.
    3.2. Slide off the actuator.

    Object Number: 604733  Size: SH
  6. Remove the actuator linkage from the mode valve lever.
  7. Squeeze the tabs on the lever in order to remove the linkage.

Installation Procedure


    Object Number: 604733  Size: SH
  1. Install the actuator linkage to the mode valve lever.

  2. Object Number: 604614  Size: SH
  3. Slide the mode actuator onto the mounting bracket until the tab locks.

  4. Object Number: 604730  Size: SH
  5. Connect the yellow vacuum hose (1) and the red vacuum hose (2) to the mode actuator.
  6. Install the instrument panel (IP) carrier. Refer to Instrument Panel Carrier Replacement .