I cant find where my truck is loseing it cooolant from

Unfortunately it sounds like the timing chain has cut grooves in the head. The 22r has the timing chain which probably would never break but plastic guides that break down and fall apart and than the chain starts cutting into the aluminum head. I had it happen on an 86’ of mine. You won’t see coolant anywhere.

Besides looking in the engine bay and under the truck after driving it, you can purchase or rent a cooling system pressure test kit. You hook a cap onto the radiator and add pressure to the system. The coolant will leak out of the hole or holes.