My car's A/C blows cold and gets cool pretty fast, even on a hot day here in AZ. The only problem is sometimes (every few minutes) it'll warm up, it doesn't get hot but it'll just warm up a little bit.
I'm guessing it just needs a recharge?? If it does do you guys have any experience or recommendations in recharging it with refrigerant bought from auto stores or is it best to get it done professionally at a shop??