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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 >> Heater Coolant Heater Air Temperature Sensor Replacement >> 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.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the heater coolant heater. Refer to Heater Coolant Heater Replacement (LWN) .
  3. Remove the heater coolant heater control module (4). Refer to Heater Coolant Heater Control Replacement .
  4. GM1658873Courtesy of GENERAL MOTORS COMPANY

    Remove the heater coolant heater blower cover retaining screws (2).

  5. Remove the heater coolant heater blower cover (3).
  6. Remove the heater coolant heater combustion cover retaining screws (1).
  7. Remove the heater coolant heater combustion cover.
  8. Remove the heater coolant heater temperature sensor retaining screw.
  9. Remove the heater coolant heater temperature sensor retaining bracket.
    10. NOTE:

    Remove and discard the O-ring on the temperature sensors.

  10. Remove the heater coolant heater temperature sensors.
    11. NOTE:

    Note the routing of the wiring to ensure proper installation.

  11. Using J-38125 - 560 remove the heater coolant heater temperature sensors wiring from the electrical connector.
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