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1999 ford escort

my a/c does not blow cold when selected on. i let the car run for about 7 mins and still no difference. my buddy and i serviced it with refridgerant and it made no change at all. I think it might be the compressor or the clutch but i am not sure. If anyone has another idea what it might be or how to further troubleshoot it please let me know.

We can’t tell from here. This is one that needs to be checked by the A/C guys. Go to a real A/C shop. In the north they are often combined with radiator repair.

We might be able to tell you a little more if you can tell us if the compressor clutch is going on, if the engine shows a sign of additional load when the A/C is turned on, if air is flowing through the vents etc.