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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 983 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Evaporator Tube Replacement (Non HP2) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  2. Remove the upper radiator air baffle and deflector. Refer to Radiator Air Upper Baffle and Deflector Replacement .
  3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
  4. Remove the surge tank hold down nut and bolt and position aside.
    5. IMPORTANT: Do not open cooling system.
    Fig 1: Removing/Installling Evaporator Tube At Evaporator
    GM385463Courtesy of GENERAL MOTORS CORP.
  5. Remove the evaporator tube nut from the evaporator.
  6. Disconnect the evaporator tube from the evaporator.
  7. Remove the evaporator tube nut from the auxiliary A/C tube, if equipped.
  8. Disconnect the evaporator tube from the auxiliary A/C tube, if equipped.
    9. Fig 2: Evaporator Tube To Condenser
    GM363033Courtesy of GENERAL MOTORS CORP.
  9. Remove the evaporator tube nut from the condenser.
  10. Disconnect the evaporator tube from the condenser.
  11. Remove the evaporator tube from the vehicle.
  12. Discard all of the used sealing washers. Cap all of the open connections.
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