Finding A/C Leaks Finding a leak in your car A/C system can be tricky. Fitting, hoses and couplings can all leak, so having a good plan of attack is. … We even show you tips and tricks the pros use to complete a better repair job! Are you spending a lot of time trying to find ‘phantom’ or ‘hidden’ leaks? Not sure about quick and fast methods to leak test the auto A/C system? We’ve got the help you need! What about those A/C systems that just don’t hold a refrigerant …