Shortly after purchase of our 05 Dynasty we got the dreaded Warning light.
This is not the Check Engine light, but one that when it illuminates, Monaco labels as 'engine parameter out of range'. We dutifully checked all the fluids and researched this and other forums for an answer. The coolant sensor seemed to be the popular suspect. We drove it on to AZ and finally had it checked out, before leaving our winter hideout, at Massey Diesel in Phoenix. Tom, the service advisor, was great. He found a trouble code which he traced to two broken injector clips. It seems we were running on five cylinders! The repair cleared the warning light, and the rig ran great (smoother, quieter, and more power). We also had a regular engine service and generator service done and he spotted and fixed a few other minor problems. We also elected to have the front wheel bearings converted to oil bath hubs. None of this was cheap but being full timers I don't have the location or the tools to deal with this beast. It's nice to know that there is somewhere we can go to get some quality service. Knowing we were full timers, Tom got us out in two days and even offered for us to stay at the location if needed. I highly recommend them.