In this video, learn how to refill your car or truck’s A/C system with refrigerant, specifically R134a, the most common refrigerant. This guide covers the procedure for topping off your system, ...

If your air conditioning system was installed before 2010, you may not be able to get coolant for it starting next January. Here's what you need to do to prepare for that cutoff. As spring comes to a ...

Q. P.W. of Oak Park asked whether it was worth fixing a small leak in the car’s air conditioning system (Cars, July 10). You replied that for a 10-year-old car, it might be better to “just top off the ...