Good Evening to all
This is a very late response to my previous posts but thought I should reply with the outcome of our overheating problem.
The good news is that we found the problem for the overheating.
The bad part is that it cost $18,000 to fix it.
It turns out that the previous owner didn't perform required air filter maintenance on the RV and the engine was sucking sand.
Washed out the Engine, Head, Turbo, and an injector or two.
What is even worse is that he know that the engine was bad when he sold it.
Live & Learn