Silverado 2500 4WD V8-6.6L DSL Turbo (2010)
7. Remove the evaporator core (1) from the upper HVAC module assembly (2).
8. Remove the air conditioning evaporator air temperature sensor. Refer to Air Conditioning Refrigerant Temperature Sensor Replacement (See:
Refrigerant Temperature Sensor/Service and Repair/HVAC - Automatic)
Installation Procedure
Note: If replacing the evaporator core, add the refrigerant oil to the evaporator core. Refer to Refrigerant System Specifications (Non-HP2) (
See: Refrigerant Oil/Specifications).
1. Install the evaporator core (1) to the HVAC module assembly (2).
2. Install the upper HVAC module assembly (2) from the lower HVAC module assembly (1)
3. Install the evaporator cowl gasket to the evaporator.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
4. Install the screws to the HVAC module assembly.
Tighten the screws to 2 Nm (18 lb in).
5. Install the HVAC module assembly. Refer to Air Conditioning and Heater Module Assembly Removal and Installation (See: Housing Assembly
HVAC/Service and Repair).
6. Install the air conditioning evaporator air temperature sensor. Refer to Air Conditioning Refrigerant Temperature Sensor Replacement (See:
Refrigerant Temperature Sensor/Service and Repair/HVAC - Automatic)