In '80, Pontiac introduced the new R4 A/C compressor to some of its Trans Ams and Firebirds. Weighing in at nearly half the mass of the long-in-the-tooth A6 compressor, the R4 continued in the F-body ...

Even though monsoon is here, the heat hasn’t completely gone away and air conditioners are still in use. However, many long-time AC users unknowingly make a common mistake when turning off their AC, ...