GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Tahoe - 2WD 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Air Conditioning Evaporator Core Replacement

Removal Procedure

    Object Number: 2008728 Size: SH
  1. Remove the HVAC module. Refer to HVAC Module Assembly Replacement.
  2. If equipped remove the heat stakes (1) from the HVAC module (2) with a screw driver and a hammer.
  3. Disconnect all wiring connections from blower motor, blower motor control module and sensors. Also, remove all wiring from retainers before removal.

    4. Object Number: 858910 Size: SH
  4. If equipped remove the screws from the HVAC module assembly.
  5. Remove the evaporator cowl gasket from the evaporator.
  6. Separate the upper HVAC module assembly (2) from the lower HVAC module assembly (1)

    7. Object Number: 858912 Size: SH
  7. Remove the evaporator core (1) from the upper HVAC module assembly (2).

Installation Procedure

    Note: If replacing the evaporator core, add the refrigerant oil to the evaporator core. Refer to Refrigerant System Capacities.


    Object Number: 858912 Size: SH
  1. Install the evaporator core (1) to the HVAC module assembly (2).

    2. Object Number: 858910 Size: SH
  2. Install the upper HVAC module assembly (2) from the lower HVAC module assembly (1)
  3. Install the evaporator cowl gasket to the evaporator.

    4. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the screws to the HVAC module assembly.

    5. Tighten
    Tighten the screws to 2 N·m (18 lb in).

  5. Install the HVAC module assembly. Refer to HVAC Module Assembly Replacement.