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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1008 (Heating, Ventilation And Air Conditioning - Gas) >> Repair Instructions >> Evaporator Tube Replacement (W/ HP2) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. 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. Fig 1: Removing/Installling Evaporator Tube At Evaporator
    GM385463Courtesy of GENERAL MOTORS CORP.
  2. Remove the evaporator tube nut from the evaporator.
  3. Remove the evaporator tube from the evaporator.
  4. Loosen the nut from the evaporator tube fitting.
    Fig 2: Locating Evaporator Tube
    GM703266Courtesy of GENERAL MOTORS CORP.
  5. Remove the rear evaporator tube (3) from the vehicle.
  6. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 5.3L.
  7. Remove the push pin from the right side radiator air baffle.
  8. Remove the bolts (2) from the starter/generator control module (SGCM) coolant pump (1).
    Fig 3: Starter/Generator Control Module (SGCM) Coolant Pump (W/ HP2)
    GM1206679Courtesy of GENERAL MOTORS CORP.
  9. Reposition the SGCM coolant pump.
  10. Remove the right park/turn signal lamp. Refer to Park/Turn Signal Lamp Replacement (Old Style) .
  11. Remove the grille from the vehicle. Refer to Grille Replacement (GMC) or Grille Replacement (Chevrolet) .
  12. Remove the evaporator tube nut from the condenser.
    Fig 4: Removing Evaporator Tube From Condenser (W/ HP2)
    GM363033Courtesy of GENERAL MOTORS CORP.
  13. Remove the evaporator tube from the condenser.
    14. Fig 5: Removing Front Evaporator Tube From Vehicle (W/ HP2)
    GM1336348Courtesy of GENERAL MOTORS CORP.
  14. Remove the front evaporator tube from the vehicle.
  15. Discard all of the used sealing washers. Cap all of the open connections.
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