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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 866 (Heating, Ventilation And Air Conditioning) >> Repair Instructions >> Evaporator Temperature Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the evaporator core. Refer to EVAPORATOR CORE REPLACEMENT  .

    Important:  Carefully remove the evaporator temperature sensor using needle nose pliers.

  2. Remove the evaporator temperature sensor from the evaporator core.
    Fig 1: Removing Evaporator Temperature Sensor
    G01498880Courtesy of GENERAL MOTORS CORP.


  1. Recover the refrigerant from the A/C system. Refer to REFRIGERANT RECOVERY AND RECHARGING  .
  2. Drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .
  3. Remove the cooling fans with the cooling fan shroud. Refer to DRAINING AND FILLING COOLING SYSTEM .
  4. Reposition the radiator outlet hose clamp at the water pump housing using the J 38185. 
    Fig 1: Removing Procedure Condenser
    G01498882Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the radiator outlet hose from the water pump housing.
  6. Reposition the radiator outlet hose clamp at the radiator using the J 38185. 
  7. Disconnect the radiator outlet hose from the radiator.
  8. Remove the radiator outlet hose.
  9. Disconnect the lower TOC line from the radiator. Refer to TRANSMISSION OIL COOLER LINE QUICK CONNECT FITTING .
  10. Remove the A/C discharge hose nut from the condenser block.
  11. Disconnect the A/C discharge hose from the condenser block.

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

  12. Cap or tape off the A/C discharge hose.
    Fig 2: Disconnecting Radiator Outlet Hose From Radiator
    G01498883Courtesy of GENERAL MOTORS CORP.
  13. Remove the evaporator inlet tube bolt from the condenser block.
  14. Disconnect the evaporator inlet tube from the condenser block.
  15. Cap or tape off the evaporator inlet tube.
    Fig 3: Removing Evaporator Inlet Tube Bolt From Condenser Block
    G01498884Courtesy of GENERAL MOTORS CORP.
  16. Remove the radiator and condenser assembly.
  17. Remove the condenser tube clip bolt.
  18. Remove the condenser tube clip.
  19. Remove the condenser mounting bolts.
  20. Remove the condenser from the radiator.
    Fig 4: Removing Condenser Tube Clip Bolt
    G01498885Courtesy of GENERAL MOTORS CORP.
  21. Remove the receiver dehydrator upper bracket bolt.
  22. Remove the receiver dehydrator lower mounting bolts.
  23. Disconnect the receiver dehydrator from the condenser.
  24. Remove and discard the sealing washers.
    Fig 5: Removing Receiver Dehydrator Upper Bracket Bolt
    G01498886Courtesy of GENERAL MOTORS CORP.
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