Couple weeks ago my ac was working fine. I shut the truck off with the ac blowing. When i restarted the truck i got nothing. No blower, no ac, nothing. All the fuses were still good. There was voltage to the blower at all speeds. So i replaced the blower motor and that fixed that but i still have no ac clutch engagement. It just wont come back on. Everything is plugged in and all the fuses and relays work perfectly. Wth? It was blowing cold cold when it was on last. Then it just stopped. So im pretty sure its not low on r12. Anybody ever have this happen?