i tried the search and didn't find what i was looking for. my ac worked fine 3 months ago it was hot in chicago (yes in march) it was the first time i tried it since i bought the truck in october. anyway it cooled the truck great and i was happy because my previous car didn't have ac. anyway i move out to washington and didn't need the ac till a few weeks ago and nothing no compressor kicking on just nothing. i have used the can of refrigerate you can get from autozone and was wondering if i should try that before i take it in. any advice would be awesome.