All ActivityMost RecentMost LikesSolutionsHeater CoreOMG. Did I just make the biggest mistake of my life. Guess I didn't do enough due diligence. I have bought a 1995 Holiday Rambler Endeaver LE Diesel Pusher with 37,000 miles. I need a heater core and maybe some AC work. Everyone I call doesn't want to work on it. Most say they won't work on anything more than 10 years old. If I eventually find some one here in the Denver area, I'm extremely worried about problems while travelling. Any responses appreciated.