LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2003 >> H2 V8-6.0L >> Repair and Diagnosis >> Heating and Air Conditioning >> Evaporator Core >> Service and Repair
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Evaporator Core: Service and Repair

EVAPORATOR CORE REPLACEMENT

REMOVAL PROCEDURE




1. Remove the HVAC module.
2. Disconnect the electrical connector from the recirculation actuator.
3. Remove the screws from the evaporator cover (1).
4. Remove the evaporator cover (1) from the HVAC module (2).




5. Remove the evaporator cowl gasket (1) from the evaporator (2).




6. Remove the evaporator core (1) from the HVAC module (2).

INSTALLATION PROCEDURE




1. Install the evaporator core (1) to the HVAC module (2).




2. Add the proper amount to PAG oil the vehicle. Refer to Refrigerant System Capacities.
3. Install the evaporator cowl gasket (1) to the evaporator (2).




4. Install the evaporator cover (1) to the HVAC module (2).

NOTE: Refer to Fastener Notice in Service Precautions.

5. Install the screws to the evaporator cover (1).

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

6. Connect the electrical connector to the recirculation actuator (1).
7. Install the HVAC module.