I just got a mitsubishi lancer 2003. But the air conditioning does not work, how do you think it would cost to fix. After talking with others on the web, I found the answer. Depends on what is wrong, the first thing first you make sure what you high and low side pressures are, and if you run a compressor. Generally its proven when a system reload recover the refrigerant and put it under a vacuum to remove moisture in the lines with a leak check function, if there is an obvious problem that will not pass the leak check, if it passes then recharge and put a color that will come out if there is a hole. Normally costs $ 60ish dollars for a refill, which is more common to be able to tell if something is wrong either compressor or high pressure switch, which is also common. But charging / control system would be the first step to be able to diag that
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