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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 >> Compressor Hose Assembly Replacement >> Removal Procedure

Removal 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.
  1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
  2. Remove the battery heat shield. Refer to Battery Heat Shield Replacement in Engine Electrical.
  3. Remove the compressor drive belt. Refer to Drive Belt Replacement - Air Conditioning in Engine Mechanical - 5.7L.
  4. Remove the RH exhaust manifold heat shield.
    5. Fig 1: Compressor Clutch Electrical Connector
    GM296204Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the compressor clutch electrical connector.
    6. Fig 2: Compressor Hose Assembly & Retaining Bolt
    GM82082Courtesy of GENERAL MOTORS CORP.
  6. Remove the compressor hose assembly retaining bolt.
    7. IMPORTANT: Cap or tape the compressor hose assembly and the compressor immediately to prevent system contamination.
  7. Disconnect the compressor hose assembly from the compressor.
  8. Remove and discard sealing washers.
  9. Cap or tape the compressor hose assembly and the compressor.
  10. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    11. Fig 3: Disassembling/Reassembling A/C Line Fittings
    GM297225Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Prior to removal, take note of the compressor hose routing and orientation between the compressor and condenser.
  11. Using a back-up wrench on the condenser fitting (2), loosen the compressor hose fitting (1) from the condenser.
    12. Fig 4: Condenser Compressor Hose Assembly & Condenser
    GM82073Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the compressor hose assembly from the condenser.
  13. Discard the O-ring seal.
  14. Cap or tape the compressor hose and the condenser.
  15. Lower the vehicle.
    16. Fig 5: Lower Compressor Mounting & Bolts
    GM296278Courtesy of GENERAL MOTORS CORP.
  16. Remove the lower compressor mounting bolts.
    17. Fig 6: Accumulator, Retaining Bolt & Compressor Hose Assembly
    GM95632Courtesy of GENERAL MOTORS CORP.
  17. Remove the compressor hose assembly to accumulator retaining bolt.
  18. Disconnect the compressor hose assembly from the accumulator.
  19. Discard the O-ring seal.
  20. Cap or tape the compressor hose and the accumulator.
  21. Remove the compressor upper mounting bolt.
    22. Fig 7: Compressor Mounting & Stud
    GM296274Courtesy of GENERAL MOTORS CORP.
  22. Remove the compressor mounting nut.
  23. Fully loosen the compressor mounting stud.
  24. Reposition the A/C compressor forward.
  25. Remove the compressor hose assembly from the vehicle.
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