Installation Procedure

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Rotate the recirculation door lever fully forward clockwise and hold in place.
Connect the recirculation actuator plunger rod to the recirculation door lever, then extend the plunger.

Fig 1: Installing Recirculation Actuator
Courtesy of GENERAL MOTORS CORP.
Inspect that the recirculation actuator pushrod is not binding on the recirculation door lever.
Push the recirculation actuator toward the HVAC module case to secure the retaining tab.

Fig 2: Releasing Recirculation Door Lever
Courtesy of GENERAL MOTORS CORP.
Release the recirculation door lever.
Connect the vacuum harness connector to the recirculation actuator.
Install the SIR bracket. Refer to BRACKET REPLACEMENT - SIR in Instrument Panel, Gages and Console.