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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1175 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Accumulator Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 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. Refer to BATTERY REPLACEMENT in Engine Electrical.
  3. Remove the battery heat shield. Refer to BATTERY HEAT SHIELD REPLACEMENT in Engine Electrical.
  4. Remove the nut retaining the heater pipe bracket to the cowl.
  5. Reposition the heater pipe bracket to access the refrigerant lines.
    Fig 1: Removing Retaining Nut For Heater Pipe Bracket To Cowl
    G01418604Courtesy of GENERAL MOTORS CORP.
  6. Remove the compressor hose to accumulator retaining bolt.

    Important:  Cap or tape the A/C components immediately to prevent system contamination.

  7. Disconnect the compressor hose from the accumulator.
  8. Remove and discard the O-ring.
  9. Cap or tape the open compressor hose and the accumulator.
  10. Reposition the compressor hose end.
    Fig 2: Disconnecting Compressor Hose From Accumulator
    G01418605Courtesy of GENERAL MOTORS CORP.
  11. Remove the accumulator bracket mounting nuts.

    Important:  Prior to removal, take note of the accumulator alignment to the accumulator hose and the rear evaporator tube.

    Fig 3: Removing Accumulator Bracket Mounting
    G01418606Courtesy of GENERAL MOTORS CORP.
  12. Reposition the accumulator slightly to access the accumulator hose to accumulator fitting.
  13. Cap or tape the open accumulator hose and the accumulator.
  14. Using a back-up wrench on the accumulator fitting (2), loosen the accumulator hose fitting (1) from the accumulator.
    Fig 4: Loosening Accumulator Hose Fitting
    G01418607Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the accumulator hose from the accumulator.
  16. Remove and discard the O-ring
    Fig 5: Disconnecting Accumulator Hose From Accumulator
    G01418608Courtesy of GENERAL MOTORS CORP.
  17. Remove the accumulator from the vehicle.
  18. Loosen the accumulator bracket clamp bolt.
    19. Fig 6: Removing Accumulator From Accumulator Bracket
    G01418609Courtesy of GENERAL MOTORS CORP.
  19. Remove the accumulator from the accumulator bracket.
  20. Inspect the accumulator bracket insulator and the accumulator lower insulator for wear or damage.
  21. If replacing the accumulator, drain and measure as much of the oil as possible from the removed accumulator.

    This measurement will be used during installation of the replacement accumulator.

Fig 7: Accumulator
G01418610Courtesy of GENERAL MOTORS CORP.
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