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.

Courtesy of GENERAL MOTORS COMPANY

Temperature Valve (1) @ Auxiliary Air Conditioning Evaporator and Blower Case - Outboard - Install
Courtesy of GENERAL MOTORS COMPANY

Auxiliary Heater Case - Outboard (1) @ Auxiliary Air Conditioning Evaporator and Blower Case - Inboard (2) - Install - Auxiliary Air Conditioning Evaporator and Blower Case Replacement - Outboard (C69)
Courtesy of GENERAL MOTORS COMPANY

Auxiliary Heater Core (1) - Install
Courtesy of GENERAL MOTORS COMPANY

Auxiliary Air Conditioning Evaporator and Blower Module Cover (2) - Install - Auxiliary Air Conditioning Evaporator and Blower Module Cover Replacement (C36 Cargo Van) , or Auxiliary Air Conditioning Evaporator and Blower Module Cover Replacement (Passenger Van C69)
Courtesy of GENERAL MOTORS COMPANY

Auxiliary Air Conditioning Evaporator and Blower Module Drain Valve (2) - Install
Air Conditioning Evaporator Tube seal (1) - Install
Courtesy of GENERAL MOTORS COMPANY

Auxiliary Heater (1) - Install - Auxiliary Heater Replacement (Cargo Van C36) , or Auxiliary Heater Replacement (Passenger Van C36)