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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (HVAC - Manual) >> Repair Instructions >> Air Valve Actuator Vacuum Harness Replacement (Under the Hood) >> 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. GM4858331Courtesy of GENERAL MOTORS COMPANY

    Install the Air Valve Actuator Vacuum Harness (5) onto the vehicle.

  2. Air Valve Actuator Vacuum Harness Grommet (4) - Install
  3. Air Valve Actuator Vacuum Harness Clip (3) - Install
  4. Return the right front carpet and padding to it's original position.
  5. Air Valve Actuator Vacuum Harness Connector (1) @ Air Valve Actuator Control Module Harness (2) - Install
  6. GM4858311Courtesy of GENERAL MOTORS COMPANY
  7. Air Valve Actuator Vacuum Harness (1) @ Heater and Air Conditioning Control Vacuum Source Hose Check Valve (2) - Install
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