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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 Evaporator Hose Replacement (Rear) >> Removal Procedure

Removal 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.
    WARNING:

    Provide additional support when a vehicle is on a hoist in the following ways:

    • Before removing parts, support the opposite end. This helps prevent the vehicle from slipping off. 
    • Before removing major components, chain the vehicle frame to the hoist pads at the same end as the removal. This helps avoid a tip-off. 

    Failure to follow these precautions could cause vehicle damage, serious personal injury, or death.

    WARNING:

    When you remove the body cushions, do NOT separate the frame from the body more than is necessary. Possible personal injury and damage to multiple parts may result if you do not follow the guides outlined below:

    • Intermediate steering shaft - Do not allow the shaft to extend more than 25 mm (1 in).
    • Fuel tank filler hose - Do not stretch the hose excessively.
    • Tail/Turn signal lamp wiring/rear lamps junction block - Leave slack in the wires.
    • Park brake cable - Leave slack in the cable.
    • Body ground straps - Leave slack in the wire.
  1. Chain the vehicle frame to the hoist pads at all four contact points.
  2. Recover the refrigerant. Refrigerant Recovery and Recharging 
  3. Drain the cooling system. Cooling System Draining and Filling (Static Fill LWN) , or Cooling System Draining and Filling (GE 47716 LWN) , or Cooling System Draining and Filling (Static LC8, LV1, L96) , or Cooling System Draining and Filling (GE47716 LC8, LV1, L96)
  4. Fuel Tank Filler Pipe - Remove - Fuel Tank Filler Pipe Replacement (Passenger/Cargo) , or Fuel Tank Filler Pipe Replacement (Chassis Cab Front Tank) , or Fuel Tank Filler Pipe Replacement (Chassis Cab Rear Tank)
  5. Remove the spare tire.
  6. Remove the left rear tire. Tire and Wheel Removal and Installation (Without Dual Rear Wheels) , or Tire and Wheel Removal and Installation (With Dual Rear Wheels)
  7. NOTE:

    The auxiliary air conditioning evaporator outlet front hose comes as an assembly and is replaced as an assembly. Individual components of the auxiliary air conditioning evaporator outlet front hose are mentioned within the procedure to help clarify disassembly and assembly.

  8. GM4568463Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Heater Inlet Hose Clamp (1) @ Auxiliary Heater Inlet Hose (5) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  9. Auxiliary Heater Inlet Hose (5) @ Auxiliary Heater Intermediate Outlet Pipe - Remove
  10. Auxiliary Heater Outlet Hose Clamp (7) @ Auxiliary Heater Outlet Hose (6) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  11. Auxiliary Heater Outlet Hose (6) @ Auxiliary Heater Intermediate Inlet Pipe - Remove
  12. Auxiliary Air Conditioning Evaporator Intermediate Tube Nut (4) @ Auxiliary Air Conditioning Evaporator Hose - Remove
  13. Auxiliary Air Conditioning Evaporator Intermediate Tube (2) @ Auxiliary Air Conditioning Evaporator Hose - Remove
  14. Remove and DISCARD the sealing washer. (3) [2x] Air Conditioning System Seal Replacement 
  15. GM4568351Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Air Conditioning Evaporator Hose Bolt (1) @ Auxiliary Air Conditioning Evaporator Hose (2) - Remove [2x]

  16. GM4568359Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Air Conditioning Evaporator Hose Bolt (2) @ Auxiliary Air Conditioning Evaporator Hose (1) - Remove

  17. GM4568356Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Air Conditioning Evaporator Hose Nut (1) @ Auxiliary Air Conditioning Evaporator Hose (2) - Remove

  18. Auxiliary Air Conditioning Evaporator Hose Clip (3) @ Underbody Cross Sill - Remove [2x]
  19. GM4568361Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Air Conditioning Evaporator Tube Shield Push Pin (1) @ Auxiliary Air Conditioning Evaporator Hose - Remove [2x]

  20. Auxiliary Air Conditioning Evaporator Tube Shield Nut (2) @ Auxiliary Air Conditioning Evaporator Hose - Remove
  21. Auxiliary Air Conditioning Evaporator Tube Shield (3) @ Auxiliary Air Conditioning Evaporator Hose - Remove
  22. GM4568365Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Heater Outlet Hose Clamp (1) @ Auxiliary Heater Outlet Hose (7) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  23. Auxiliary Heater Outlet Hose (7) @ Auxiliary Heater Core - Remove
  24. Auxiliary Heater Inlet Hose Clamp (2) @ Auxiliary Heater Inlet Hose (6) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  25. Auxiliary Heater Inlet Hose (6) @ Auxiliary Heater Core - Remove
  26. Auxiliary Air Conditioning Evaporator Hose Nut (5) @ Auxiliary Air Conditioning Evaporator Hose (4) - Remove
  27. Auxiliary Air Conditioning Evaporator Hose (4) @ Auxiliary Air Conditioning Evaporator - Remove
  28. Remove and DISCARD the sealing washer. (3) [2x] - Air Conditioning System Seal Replacement 
  29. Remove the four most rearward left side body mounts. Body Mount Upper and Lower Cushion Replacement
  30. Remove the three most rearward right side body mounts. Body Mount Upper and Lower Cushion Replacement
  31. Loosen, but do not remove the remaining three left side body mounts. Body Mount Upper and Lower Cushion Replacement
  32. GM4594929Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    All jack stands must remain under the vehicle during the removal and installation.

    Position jack stands (1) [4x] and wood blocks under the body of the vehicle at each corner.

  33. Adjust the left rear jack stand so it is slightly higher than the other jack stands.
  34. Carefully lower the vehicle onto the jack stands to raise the left rear of the body just enough to remove the auxiliary air conditioning evaporator hose from the vehicle.
  35. Remove the auxiliary air conditioning evaporator hose from the vehicle.