In February, the U.S. Environmental Protection Agency issued final approval of HFO-1234yf as a refrigerant for air conditioners in new cars and light trucks. It eventually will likely replace R-134a, ...

EPA has again revised standards for refrigerant used in vehicles. R-12 refrigerant (aka “Freon”) was the go-to coolant for more than 50 years. Then it was discovered that chlorine atoms in escaped ...

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 ...