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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1546 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Air Temperature Door Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Temperature Door
    GM395303Courtesy of GENERAL MOTORS CORP.
  1. Install the temperature door.
    2. Fig 2: Lower HVAC Module Case & HVAC Module Case Primary Seal
    GM296253Courtesy of GENERAL MOTORS CORP.
  2. Install the new case seal to the HVAC module case.
  3. Wet the upper evaporator core seal with water.
    4. IMPORTANT: Inspect the condition of the retaining tab on the upper module case prior to installing the lower module case. If the retaining tab is broken or damaged, install an external retaining clip (P/N 52458793, or equivalent).
    Fig 3: View Of Upper & Lower HVAC Module Assembly Case
    GM295357Courtesy of GENERAL MOTORS CORP.
  4. Align and install the upper module case to the lower module case.

    Align and secure the retaining tab (1).

    5. NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Install the HVAC module upper mounting screws.

    Tighten:  Tighten the screws to 1.6 N.m (14 lb in).

  6. Install the air inlet housing.
  7. Install the air inlet housing retaining screws.

    Tighten:  Tighten the screws to 1.6 N.m (14 lb in).

  8. Install the temperature actuator.
  9. Install the temperature actuator screws.

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

  10. Install the HVAC module. Refer to HVAC Module Assembly Replacement .
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