I finally had enough of just looking at bigboy. SO I broke off about 2 hours to get into it. I took the coolant tank hoses off. 1) The long one that goes to the radiator had some build up in it, with chunks of what appeared to be chunks of rust. So I blew that line out with 140 psi and believe it will suffice for now.2) The short hose that goes to the engine is a complete different story,That line is completely impacted. I sprayed engine cleaner in it, bug and tar remover, and tried to blow it out with the same psi, but to no avail! So my question is would this smaller line be the root cause of my problem? I know I will still have to replace the water pump soon, but I hope that this hose will get me on the road for a short time, until I can do some more pick ups for fellow members! Hint,hint,wink,wink!!!