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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 677 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Heater Door Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the heater door (6).
  2. Install the heater door cam assembly (5).
  3. Install the mode actuator cam assembly (4).
  4. Install the mode actuator (3).
  5. Install the heater/vent module halves.
  6. Install the heater/vent module screws. Tighten the screws to 1.6 N.m (14 lb in).
  7. Install the heater/vent module. Refer to Heater/Vent Module Replacement .
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