Changes

If the air from the vents does not seem cold enough but the air conditionning conditioning is still working, the A/C may not have been recharged for a long time, or there may be small leaks in the system. Joints between pipes and hoses depend on o-ring seals which often dry out and lose their elastic properties after a few years. For best operation, the system should be evacuated, recharged, and tested for leaks every few years(4-6) by an A/C service professional who can be trusted, but adding refrigerant is a simple process with no special tools required.

* AC Charging guagegauge