A professional who inspects and tests automotive cooling systems to diagnose malfunctions and estimates cost of repairs. Respnsibilities include:

• Questions customer and examines cooling system, hoses, and connections to determine nature and extent of malfunctions.
• Tests and analyzes electrical, vacuum, pressure, and related functions of system components to locate cause of malfunctions, using vacuum tester, pressure tester, voltmeter, and other specialized test equipment and handtools.
• Compiles estimate of system repair costs and secures customer approval to perform repairs.
• Occasionally assists automobile-radiator mechanic in repair of cooling system components, using mechanic's handtools.
• Computes parts and labor charges and routes customer bill to office.