Air Conditioning
Proper air conditioner operation is a MUST in central Texas! Every part of the system must work together for you to get that cool relief sitting on I-35. The A/C system is put under its most stress sitting in stop-and-go traffic, and like anything else, this takes its toll on everything from your blower motor to your compressor and even the radiator and engine cooling system.
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Checking the charge level of the refrigerant is done by attaching hoses with gauges to the service ports. By reading the high-side and the low-side pressures, I can determine if the system is malfunctioning or simply low on a charge.
The easiest way to find a small leak is to recover and recharge the system while adding an ultraviolet reactive dye. Drive it around for a week or two, and at which time, free of charge, I'll run an ultraviolet light over the system to determine the source of the leak.
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BUT, please beware of shops that will do a 'free A/C check'. I have found that more times than not, after the hoses are removed, the service valves don't seal properly, creating a new leak. I always replace these valves with any A/C service, saving us both time and money in the long run.