GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Classic 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Mode Valve Actuator Replacement

Removal Procedure

    Object Number: 604730 Size: SH
  1. Remove the I/P carrier. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gages, and Console.
  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
  3. Remove the recirculation actuator.
    4. 3.1. Lift the actuator lock tab.
    3.2. Slide off the actuator.

    Object Number: 604733 Size: SH
  4. Remove the actuator linkage from the mode door.

    5. 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 door.

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

    3. Object Number: 604730 Size: SH
  3. Connect the yellow vacuum hose (1) and the red vacuum hose (2) to the mode actuator.
  4. Install the I/P carrier. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gages, and Console.