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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 >> Evaporator Tube Replacement - Front >> 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 upper radiator support. Refer to Radiator Support Replacement in Engine Cooling.
    4. Fig 1: Refrigerant Pressure Sensor & Electrical Connector
    GM380181Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the electrical connector from the refrigerant pressure sensor.
    5. Fig 2: Condenser Front Evaporator Tube & Bolt
    GM297294Courtesy of GENERAL MOTORS CORP.
  5. Remove the bolt which secures the front evaporator tube to the condenser.
    6. IMPORTANT: Cap or tape the open A/C components immediately to prevent system contamination.
  6. Disconnect the front evaporator tube from the condenser.
  7. Remove and discard the O-ring.
  8. Cap or tape the open front evaporator tube and the condenser.
    9. Fig 3: Front Evaporator Tube & Bolt
    GM297295Courtesy of GENERAL MOTORS CORP.
  9. Remove the bolt which secures the front evaporator tube to the rear evaporator tube.
  10. Disconnect the front evaporator tube from the rear evaporator tube.
  11. Remove and discard the O-ring.
  12. Cap or tape the front and rear evaporator tubes.
    13. Fig 4: A/C Refrigerant Pressure Sensor
    GM621754Courtesy of GENERAL MOTORS CORP.
  13. Remove the front evaporator tube from the vehicle.
  14. Remove the A/C refrigerant pressure sensor from the evaporator tube.
  15. Discard the O-ring.
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