Title: Identify abnormal operating noises in the A/C system; determine needed action.
Course: Automotive Technology III (20104-III) > Section: HEATING, VENTILATION, AND AIR CONDITIONING (HVAC): General

Identification should include

- determining the source (e.g., compressor, clutch, belt, pulleys, fans, refrigerant restrictions, blend door, heater blower motor) of any unusual noise
- following service materials and manufacturer guidelines to form a solution.

Process/Skill Questions:

- What can cause abnormal operating noises?
- How would a technician diagnose an abnormal noise in an A/C system?
- What service precautions should be taken when working on an A/C system?