Thoroughly convinced my problem is electrical. Started the truck up today and the ac cooled down almost instantly. 45f vent temps going down the road. It was glorious. Then it was warm after about 10 minutes.
Thanks. I'll look into it.The cycling switch on the accumulator is bad about going out. I had several go on my Express van to the point I kept a spare in the glovebox. I swapped that switch and connector back to the older adjustable style and have not had an issue since. From GM the accumulator has a shrader valve in it where it threads on and refrigerant loss is minimal changing it out.