Installation Procedure

Important:  The left and right air temperature actuators pivot in the center.

1. Install the air temperature actuators (1,2).

   Carefully align the air temperature actuators into the HVAC module case.

   Fig 1: Left & Right Air Temperature Actuators

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2. Install the air temperature actuator.
   Fig 2: Air Temperature Actuator

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3. Install the new case seal (2) into the HVAC module case (1).
   Fig 3: Starting Point For HVAC Module Case Seal Installation

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4. Align and install the upper HVAC module case to the lower module case.

   Align and secure the retaining tab (1) on the upper module case to the retaining slot on the lower module case.

5. Install the HVAC module upper mounting screws.

   Tighten 

   Tighten the screws to 1.5 N.m (13 lb in).

   Fig 4: Upper & Lower Module Cases Retaining Tab

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6. Install the recirculation housing (2).
   NOTE: Refer to FASTENER NOTICE .
7. Install the recirculation housing retaining screws (1).

   Tighten 

   Tighten the screws to 1.5 N.m (13 lb in).

   Fig 5: Recirculation Housing & Retaining Screws

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8. Position the right air temperature actuator, then align the slots in the electric actuator drive to the flats of the shaft.
9. Align the locating hole to the alignment pin on the HVAC module case.
10. Slide the actuator drive on the shaft. The actuator drive should set completely on the shaft and the mounting holes should be flush with the mounting screws on the HVAC module case.
    NOTE: Refer to FASTENER NOTICE .
11. Install the screws to the right air temperature actuator.

    Tighten 

    Tighten the screws to 1.5 N.m (13 lb in).

12. Install the HVAC module. Refer to HVAC Module Assembly Replacement .
    Fig 6: Actuator Drive & Shaft

    Courtesy of GENERAL MOTORS CORP.