Colorado 4WD L5-3.5L VIN 6 (2005)
Heater Core: Service and Repair
HEATER CORE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the HVAC module assembly. See: Heating and Air Conditioning/Housing Assembly HVAC/Service and Repair
2. Remove the heater core pipes clamp screw (3).
3. Remove the heater core pipes clamp (2).
4. Remove the heater core clamp screws.
5. Remove the heater core clamp (2).
6. Remove the heater core from the HVAC module.
INSTALLATION PROCEDURE
1. Install the heater core to the HVAC module.
2. Install the heater core clamp (2).
NOTE: Refer to Fastener Notice in Service Precautions.
3. Install the heater core clamp screws.
Tighten
Tighten the screws to 1.9 N.m (17 lb in).
4. Install the heater core pipes clamp (2).
5. Install the heater core pipes clamp screw (3).
Tighten
Tighten the screw to 20 N.m (15 lb ft).
6. Install the HVAC module assembly.