Hi all, had my bus looked at by a professional mechanic, charged me a bunch of money and did very little. I guess I should have expected as much. The most important issues are glow plugs and AC. Most of the glow plugs haven't been removed in who knows how long. They said if they were to break even one off it would cost a grand or so to remove the head and get it back together. Is there an easier way? I have it plugged in to my house every day, so it kicks right over. What I'm concerned about is when I get back on the road in a month or so and can't plug in, unless I get a portable generator. Also, all they could tell me about the AC is that there is definitely an air leak in the heater box located on the passenger side somewhere. I carry animals across country so not having AC isn't an option. I have a second rear unit over the rear exit door which blows a lot of air, just wish it was cold.. Any ideas for isolating just the rear one if I can't figure out the entire system issue? Thanks for any and all replies!!