I bought a 99 Fleetwood brand new off the showroom and had many of the same problem as your having. First rain storm that we were in the roof was leaking water. Fleetwood never tested my coach for leaks when it left the factory! The engine was a Ford V-10 and the spark plugs were blowing out of the block, slide out problems and more? Fleetwood repaired everything every time with a apology so I commend them for that. After 4 years, I just couldn't trust taking this coach out again and traded it in on another Winnebago. Sorry to hear about about the problems with your coach and I feel sorry for the next person who owns it after you trade it in!