Sierra 1500 2WD V8-5.3L VIN B HO (2006)
Heater Core: Service and Repair
Heater Core (Heat Only)
HEATER CORE REPLACEMENT (HEAT ONLY)
REMOVAL PROCEDURE
1. Remove the heater/vent module.
2. Remove the heater core cover screws.
3. Remove the heater core cover.
4. Remove the heater core.
INSTALLATION PROCEDURE
1. Install the heater core.