Installation Procedure

2019 Chevrolet Silverado 1500 SSV, 4WD, GasSECTION Installation Procedure
  1. GM5596359Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Evaporator Air Temperature Sensor (4) - Install

  2. Temperature Valve Actuator - Left Side (3) - Install
  3. Mode Valve Actuator (2) - Install
  4. CAUTION:

    Refer to Fastener Caution .

  5. Heater and Air Conditioning Evaporator and Blower Module Bolt (1) - Install and tighten [4x] - Fastener Specifications
  6. GM5046704Courtesy of GENERAL MOTORS COMPANY

    {with C32} Air Heater (1) - Install

    1. GM5046702Courtesy of GENERAL MOTORS COMPANY

      Heater and Air Conditioning Evaporator and Blower Module Bolt (1) - Install and tighten [2x] - Fastener Specifications

    2. Connect the electrical connectors.
  7. GM5596355Courtesy of GENERAL MOTORS COMPANY

    Heater (1) - Install

  8. GM5136594Courtesy of GENERAL MOTORS COMPANY

    Air Distributor Case (1) - Install

  9. GM5136587Courtesy of GENERAL MOTORS COMPANY

    Air Distributor Case Bolt (1) - Install and tighten [5x] - Fastener Specifications

  10. GM5043374Courtesy of GENERAL MOTORS COMPANY

    Heater Cover (2) - Install

  11. Heater and Air Conditioning Evaporator and Blower Module Bolt (1) - Install and tighten [3x] - Fastener Specifications
  12. GM5591864Courtesy of GENERAL MOTORS COMPANY

    {If equipped} Temperature Valve Actuator - Right Side - Install

  13. Heater and Air Conditioning Evaporator and Blower Module Bolt (1) - Install and tighten [2x] - Fastener Specifications
  14. Install the wiring harness and connector the electrical connectors.
  15. GM5043198Courtesy of GENERAL MOTORS COMPANY

    {If equipped} Front Floor Console Auxiliary Cooling Duct (2) - Install

  16. {If equipped} Front Floor Console Auxiliary Cooling Duct Bolt (1) - Install and tighten [2x] - Fastener Specifications
  17. GM5591399Courtesy of GENERAL MOTORS COMPANY

    Air Inlet Housing (1) - Install

  18. GM5591387Courtesy of GENERAL MOTORS COMPANY

    Air Inlet Housing Bolt (1) - Install and tighten [3x] - Fastener Specifications

  19. Connect the electrical connector.
  20. GM5591493Courtesy of GENERAL MOTORS COMPANY

    Heater And Air Conditioning Evaporator Module Cover (1) - Install

  21. GM5591492Courtesy of GENERAL MOTORS COMPANY

    Wiring Harness Retainer (3) - Install [2x]

  22. Heater and Air Conditioning Evaporator and Blower Module Bolt (2) - Install and tighten [9x] - Fastener Specifications
  23. Air Conditioning Evaporator Case Drain Tube Seal (1) - Install
  24. GM5591391Courtesy of GENERAL MOTORS COMPANY

    Floor Front Air Outlet Duct - Right Side (2) - Install

  25. Heater and Air Conditioning Evaporator and Blower Module Bolt (1) - Install and tighten [2x] - Fastener Specifications
  26. Heater and Air Conditioning Evaporator and Blower Module - Install - Heater and Air Conditioning Evaporator and Blower Module Removal and InstallationΒ 
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.