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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1448 (HVAC Systems - General Servicing) >> Repair Instructions >> Expansion (Orifice) Tube Replacement (Auxiliary System) >> Removal Procedure

Removal Procedure

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  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Remove the accumulator. Refer to Accumulator Replacement .
  3. Remove the coolant reservoir. Refer to Coolant Recovery Reservoir Replacement in Engine Cooling.
  4. Fig 1: Locating A/C Components
    GM871559Courtesy of GENERAL MOTORS CORP.
  5. Loosen the evaporator tube nut (5) from the evaporator.
  6. Remove the evaporator tube from the evaporator.
  7. Fig 2: Locating A/C Tube Components
    GM900650Courtesy of GENERAL MOTORS CORP.
  8. Remove the nut (2) from the evaporator tube block (3).
  9. Separate the evaporator tube at the block fitting (3).
  10. Use the J 26549-E  in order to remove the expansion tube (4). See Special Tools and Equipment .
  11. Remove the O-ring seal and discard.
  12. Remove the expansion tube (4) from the evaporator tube (1).