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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 (LR4, LM7, LQ4, L18 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 (2) to the bracket (1) through the fender well. Insert the mounting bolt (3) into the lower right mounting boss before installing the A/C compressor.
  3. Install the A/C compressor to the bracket. Insert the mounting bolt into the lower right mount before installing 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 connector to the A/C compressor.
  6. Install the A/C discharge hose to the compressor using new sealing washers.
  7. Install 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 wheel house panel to the vehicle.
  11. Install the right front tire and wheel assembly.
  12. Install the A/C drive belt.
  13. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery & Recharging .
  14. Leak test the fittings of the component using the J 39400-A  .
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