Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Over time, a car's air conditioning system will begin be less and less effective, ...

Q: A few years ago, I had the factory air conditioning on my 1970 Oldsmobile converted from Freon R12 to R-134a. This summer, the air conditioner only blew warm air. Can I convert back to Freon or do ...

Robinair’s R-ID (No. 16990) and R-ID Plus (No. 16995) Refrigerant Analyzers are designed to determine the refrigerant purity of an A/C system quickly and accurately on vehicles with R-12, R-134a or ...

The heart of a vehicle’s A/C system is the compressor that’s connected to the engine by a clutch, which is triggered by a pressure switch located on the accumulator (in our case), and the A/C button ...