Since we purchased the new 6.0L motor we have had nothing but trouble. We run a rescue business and when we go to use the 2005 rescue unit we have no idea if it will run or not. Our last rescue we had a victim in the back with copd and the rescue unit would not run over 35 mph, for a rescue unit that is slow. Could you advise us on how or who to take this unit to in SW Iowa to get it fixed. It is a part of the life line of our community and we need it to preform when needed. The local dealer is incapable to find the problem, maybe we just got a lemon but this unit has been in the shop more than out.