We too had an eventful departure from Yellowstone. We only made it as far as Island Park before the check engine light came on. Spewing black smoke from the exhaust and off and on loss of power, we limped our way to Rexberg, Idaho before the stop engine light came on. At that point we stopped and called Good Sam emergency Roadside Assistance. They arranged for a flatbed tow to Idaho Falls for the nearest Cummins repair center. FWIW, they were very responsive and they did a great job with the tow. Spent the night parked in front of the repair shop. The next day, the diagnosis was a small motor assembly that controls the EGR exhaust valve had burned out. Mind you this is Friday of a holiday weekend. The closest the part could be found was Salt Lake City and the soonest it could be there was Tuesday. At that point, we packed up the toad with 2 dogs, some clothes and some food to head for home (near Los Angeles). We figured we would drive until we got tired, they try to find a place to stay that would accept dogs and would have availability on Memorial Day weekend. Well, we kept driving and driving and before you know it, we decided to come all they way home. 899 miles and 14 hours later, we arrived safe and sound at home. The longest I have ever driven in one stretch, but of course, faster and easier than driving the MH. Now on Friday, we get to fly to Salt Lake City (the closest airport), rent a car, drive 3 hours to Idaho Falls, drop off the rental car, pick up the motorhome and make the same 899 mile drive home. Although, believe me, we won't do it in 1 day. For the icing on the cake, our extended service contract doesn't cover emissions equipment, which this is. So, the 900.00 repair will all be out of pocket, bu since our deductible is $ 500.00 it's really only an extra $ 400.00. We are one of the few that are still ahead (or at least even) on our service contract. But the 10 days in Yellowstone made it all worthwhile. One of the best places we've ever visited. Special thanks to Kim & Christi for organizing and showing us around. Forum framily is the best!
Steve & Dee