Title: Inspect the A/C system service ports (gauge connections).
Course: Diesel Equipment Technology III (20107-III) > Section: Heating, Ventilation, and Air Conditioning: Servicing the Evaporator, Condenser, and Related Components

Inspection should include

- using the proper tooling
- examining ports for dye or leaks
- installing gauges
- checking the fit of ports onto gauges.

Process/Skill Questions:

- What is the cause of dye or oil pooling on a service port?
- Why are the ports identified with red and blue caps?