GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 517338  Size: SH
  1. Remove the heating, ventilation and air conditioning (HVAC) control vacuum valve. Refer to HVAC Control Vacuum Valve Replacement .
  2. Pull the HVAC control selector knob (1) off.
  3. Remove the HVAC control selector switch (5) from the control.

Installation Procedure


    Object Number: 517338  Size: SH
  1. Install the HVAC control selector switch (5) to the control.
  2. Push the HVAC control selector knob (1) on.
  3. Install the HVAC control vacuum valve. Refer to HVAC Control Vacuum Valve Replacement .