Bought the car recently and the a/c blows cold, but not cold enough for the Florida heat!!! Bought three cans of sub-zero refrigerant, and it seems to have improved, but being the perfectionist I am, I just need more!!! The pressure gauge readings are in the lows, so should I add a can moreor twoof refrigerant, or something else could help make it cooler??? I'm certain there are no leaks.....

Thanks in advance for your opinions, suggestions and comments!

Greg

 

Three cans is probably an over charge..if your pressures are low even with that much..I suspect a bad compressor

 

your pressure readings should run around 28 to 35 most generally depending on the weather condition's but general rule of thumb the a/c system is only going to drop the temp around 10 degrees from the outside temp. But like dennis said if you already but three cans in it should of been enough depending on the size of can and with you having a low reading definiatly check the compressor.

 

usually overcharging a/c unit can make itrun worse