LaMonte, you mentioned two things, number one apparent never hear of bleeding air from
head, and number two which was the no loss of fluid. ( engine runs normal but heat indicator
shows extreme temperature 225. which tells a person your heat temperature is gauge is faulty/).
Pulling then radiator will not hurt except cost, but seems funny all the problem started in there
shop. Sorry I cannot help you any more but life is a learning experience and is a trend building
today with retired people on the road with motorhomes. You have many friends on the forum
I feel share the same concern. The downside to being down on the road ( your at service shop
mercy and out of your control ) Again wish there was more I could have done to help you. Sometime when we will meet at a rally, I will provide cat information hard copy on how arriving
to answer to your post. Dave Atherton Retired Cat Mechanic ( 42 years )