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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 55 (Heating, Ventilation, And Air Conditioning System) >> Repair Instructions >> Auxiliary Air Conditioning (A/C) Evaporator and Blower Module Assembly Removal and Installation (C69 Cargo Van) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM4846836Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Air Conditioning Evaporator and Blower Module (1) - Install

  2. GM4846835Courtesy of GENERAL MOTORS COMPANY

    Connect the electrical connectors.

    3. CAUTION:

    Refer to Fastener Caution .

  3. Auxiliary Air Conditioning Evaporator and Blower Module Bolt (1) - Install and tighten [2x] 10 N.m (89 lb in)
  4. GM4845858Courtesy of GENERAL MOTORS COMPANY

    Rear Floor Auxiliary Air Outlet Duct (2) - Install - Rear Floor Auxiliary Air Outlet Duct Replacement (Top Hat Cargo) , or Rear Floor Auxiliary Air Outlet Duct Replacement (Passenger Long Wheel Base Over the Axle) , or Rear Floor Auxiliary Air Outlet Duct Replacement (Front Long Wheel Base Passenger) , or Rear Floor Auxiliary Air Outlet Duct Replacement (Front Short Wheel Base Passenger) 

  5. GM4845795Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Air Conditioning Air Outlet Duct (2) - Install - Auxiliary Air Conditioning Air Outlet Duct Replacement (Top Hat Cargo Van C69) , or Auxiliary Air Conditioning Air Outlet Duct Replacement (Rear Pillar Passenger Van) 

  6. Raise and support the vehicle. Lifting and Jacking the Vehicle
  7. GM4568365Courtesy of GENERAL MOTORS COMPANY

    Install NEW sealing washers. (3) [2x] Air Conditioning System Seal Replacement 

  8. Auxiliary Air Conditioning Evaporator Hose (4) @ Auxiliary Air Conditioning Evaporator - Install
  9. Auxiliary Air Conditioning Evaporator Hose Nut (5) @ Auxiliary Air Conditioning Evaporator Hose (4) - Install and tighten - Auxiliary Air Conditioning Evaporator Hose Replacement (Rear) 
  10. Auxiliary Heater Outlet Hose (7) - Install
  11. Auxiliary Heater Inlet Hose (6) - Install
  12. Auxiliary Heater Inlet Hose Clamp (2) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  13. Auxiliary Heater Outlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  14. GM4568361Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Air Conditioning Evaporator Tube Shield (3) - Install

  15. Auxiliary Air Conditioning Evaporator Tube Shield Nut (2) - Install and tighten - Auxiliary Air Conditioning Evaporator Hose Replacement (Rear) 
  16. Auxiliary Air Conditioning Evaporator Tube Shield Push Pin (1) - Install [2x]
  17. Lower the vehicle.
  18. Evacuate and charge the refrigerant system. Refrigerant Recovery and Recharging 
  19. Fill the cooling system to the proper level.
  20. Inspect for coolant leaks.
  21. Inspect for refrigerant leaks.
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