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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/Vent Module 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. Install the heater/vent module assembly to the vehicle.
  2. Install the heater/vent module mounting nuts. Tighten the nuts to 9 N.m (80 lb in).
  3. Install the heater/vent module mounting screws. Tighten the screws to 4 N.m (35 lb in).
  4. Connect the electrical harnesses and the ground connections.
  5. Install the heater/vent module drain hose.
  6. Install the IP carrier.
  7. Install the accumulator.
  8. Install the outlet heater hose to the heater core.
  9. Reposition the outlet heater hose clamp to the heater core.
  10. Install the inlet heater hose to the heater core.
  11. Reposition the inlet heater hose clamp to the heater core.
  12. Fill the engine coolant.
  13. Leak test the fitting of the repaired component using J 39400-A  .
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