Sierra Classic 3500 4WD V8-8.1L (2007)
Heater Core: Service and Repair
Heater Core Replacement (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.
