Title: Inspect and test heater coolant control valve(s); determine needed action.
Course: Automotive Technology III (20104-III) > Section: HEATING, VENTILATION, AND AIR CONDITIONING (HVAC): Refrigeration System Components

Procedures should include

- visually inspecting for leaks
- consulting service manual for proper operation of coolant control valve.

Process/Skill Questions:

- What is the purpose of the heater coolant control valve?
- What are the symptoms/concerns of a failed heater/coolant control valve?