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.

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Heater Assembly (1) - Install
Support the heater case.
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CAUTION:
Refer to Fastener Caution .

Heater Case Nut (1) - Install and tighten 5.5 N.m (49 lb in)
Remove the support supporting the heater case.
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Instrument Panel Carrier (1) - Install - Instrument Panel Carrier Replacement
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Instrument Airbag Panel Module (2) - Install - Instrument Panel Airbag Replacement
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Instrument Panel Trim Pad (2) - Install - Instrument Panel Trim Pad Replacement
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Windshield Defroster Outlet Duct (1) - Install - Windshield Defroster Duct Replacement
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Instrument Panel Upper Trim Panel (1) - Install - Instrument Panel Upper Trim Panel Replacement
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Instrument Panel Extension (1) - Install - Instrument Panel Extension Replacement
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Radio (2) - Install - Radio Replacement
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Heater and Air Conditioning Control (2) - Install - Heater and Air Conditioning Control Replacement
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Instrument Cluster (2) - Install - Instrument Cluster Replacement
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Instrument Panel Cluster Trim Plate (1) - Install - Instrument Panel Cluster Trim Plate Replacement
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Steering Column (1) - Install - Steering Column Replacement
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Instrument Panel Knee Bolster- Left Side (1) - Install - Instrument Panel Knee Bolster Replacement (Left Side)
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Instrument Panel Knee Bolster-Right Side (1) - Install - Instrument Panel Knee Bolster Replacement (Right Side)
Install the left side body hinge pillar trim panel and right side body hinge pillar trim panel. Body Hinge Pillar Trim Panel Replacement
Install the left side windshield garnish molding and right side windshield garnish molding. Windshield Garnish Molding Replacement
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Heater Outlet Hose (2) @ Heater Core Outlet Tube - Install - Heater Outlet Hose Replacement (LWN with C69) , or Heater Outlet Hose Replacement (LWN Auxiliary Heater Outlet Hose) , or Heater Outlet Hose Replacement (LWN Water Pump Inlet Pipe to Heater Inlet and Outlet Pipe) , or Heater Outlet Hose Replacement (LWN without C69) , or Heater Outlet Hose Replacement (LV1 Water Pump to Heater Core Outlet Tube without C69) , or Heater Outlet Hose Replacement (LV1 Auxiliary Air Conditioning Evaporator Front Tube to Heater Core Outlet Tube with C69) , or Heater Outlet Hose Replacement (L96, LC8 Heater Water Flow Control Valve to Heater Core Outlet Tube) , or Heater Outlet Hose Replacement (L96, LC8 Water Pump Housing to Heater Water Flow Control Valve) , or Heater Outlet Hose Replacement (L96 Auxiliary Heater Inlet and Outlet Pipe to Heater Core Outlet Tube)
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Heater Inlet Hose (3) @ Heater Core Inlet Tube - Install - Heater Inlet Hose Replacement (LWN with C69) , or Heater Inlet Hose Replacement (LWN Auxiliary Heater Inlet Hose) , or Heater Inlet Hose Replacement (LWN Water Pump Inlet Pipe to Heater Inlet and Outlet Pipe) , or Heater Inlet Hose Replacement (LWN without K08 Engine Coolant Thermostat to Heater Inlet and Outlet Pipe) , or Heater Inlet Hose Replacement (LWN without C69) , or Heater Inlet Hose Replacement (LV1 without C69) , or Heater Inlet Hose Replacement (LV1 Auxiliary Air Conditioning Evaporator Front Tube to Heater Core Inlet Tube with C69) , or Heater Inlet Hose Replacement (L96, LC8 Heater Water Flow Control Valve to Heater Core Inlet Tube) , or Heater Inlet Hose Replacement (L96, LC8 Water Pump Housing to Heater Water Flow Control Valve) , or Heater Inlet Hose Replacement (L96 Heater Core Inlet Tube to Auxiliary Heater Inlet and Outlet Pipe)
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Air Conditioning Evaporator and Blower Module (1) - Install - Air Conditioning (A/C) Evaporator and Blower Module Assembly Replacement (C60) , or Air Conditioning (A/C) Evaporator and Blower Module Assembly Replacement (C42)
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Install the right side floor front air outlet center duct (2). Floor Front Air Outlet Center Duct Replacement - Right Side
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Engine Cover (1) - Install - Engine Cover Replacement
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Front Floor Console Extension Panel (2) - Install - Front Floor Console Extension Panel Replacement
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Air Conditioning Evaporator (1) - Install
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Blower Case Assembly (1) - Install - Blower Case Replacement
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Air Conditioning Accumulator (2) @ Air Conditioning Evaporator - Install - Air Conditioning Accumulator Replacement
Air Conditioning Evaporator Tube (1) @ Air Conditioning Evaporator - Install - Air Conditioning Evaporator Tube Replacement (C60) , or Air Conditioning Evaporator Tube Replacement (C69)
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Coolant Recovery Reservoir (1) - Install - Coolant Recovery Reservoir Replacement (LV1) , or Coolant Recovery Reservoir Replacement (L96, LC8)
Evacuate and charge the refrigerant system. Refrigerant Recovery and Recharging
Fill 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)
Check the cooling system for leaks.
Visually inspect for air conditioning system refrigerant leaks.