Before servicing a vehicle, confirm system refrigerant type. Cross contamination of refrigerants can cause damage to A/C system, service tools and equipment. GENERAL MANIFOLD INFORMATION: The right (red) side of the manifold is the high side and the red gauge
 A Layman’s Guide to Automotive A/C
Automotive air conditioning is a self-contained system which cools the cabin of a car by changing the phase of refrigerant from gas to liquid and back again by applying and releasing pressure on it. Each of the parts of the
Coolant? Refrigerant? What’s the Difference?
When you’re in the A/C business (like we are) the distinction between coolants (antifreeze) and refrigerants is abundantly clear. However, so many people ask us to distinguish between them that we’ve decided to set the record straight once and for