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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 >> Compressor Replacement (LB7 w/Denso) >> 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. Add the proper amount of PAG oil to the compressor crankcase. Refer to Refrigerant System Capacities .
  2. Install the A/C compressor drain plug. Tighten the drain plug to 20 N.m (15 lb ft).
  3. Install the A/C compressor.
  4. Install the A/C compressor mounting bolts. Tighten the bolts to 50 N.m (37 lb ft).
  5. Connect the electrical connection.
  6. Install the A/C discharge hose to the compressor using new sealing washers.
  7. Instal the A/C discharge hose bolt to the A/C compressor. Tighten the bolt to 16 N.m (12 lb ft).
  8. Install the A/C suction hose to the compressor using new sealing washers.
  9. Install the A/C suction hose bolt to the A/C compressor. Tighten the bolt to 16 N.m (12 lb ft).
  10. Install the drive belt.
  11. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery & Recharging .
  12. Leak test the fittings of the component using the J 39400-A. 
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