Well I have run a few good hot cycles through the system. I checked the #13 fuse which was fine, and wired the pump to come on with the key. Turned key on and nothing, so it is definitely the pump. It is just a crazy coincidence that the pump goes out during the install of seperation tubes. Maybe some coolant leaked onto it and shorted it out. Now I have to wait on a pump to arrive to get my S/C back on track. It kicks on just long enough to heat up and kicks off.