Hello ,maybe i can help.There is a multiple system check to perform,but being as you are asking for help,on fix ya,I can only think you are with out ac gauges and other helpful tools.What we need to check first off is,under the hood,see if the ac compressor is turning when the problem presents it`s self(when the ac light goes off).If so,you may just need a little freon added to the system.If the ac compressor is turning when the ac light is off ,look and see if the cooling fan or fans are running.If the fan or fans are not running,then you have one out of three things happening, One is ,a cooling fan relay is not working,two-as simple as a fuse is blown,and finally,a high side pressure switch that cuts on the cooling fan,or fans has gone out.Of course the possibility of a ac compressor gone weak is also a problem to look at.You may still need a ac service tech to check it out if any of the three things I mentioned are not the problem.I hope this has helped you with your ac problem,and if I can help you any further let me know,,,,
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