All ActivityMost RecentMost LikesSolutionsRe: Loosing speed going uphill and revs at 3500 rpm+Thank you all for your replies. I have made an appt with a RV mechanic. Will follow up on the issues found.Re: Loosing speed going uphill and revs at 3500 rpm+you misread it. When I had a 5th wheel I had it hooked up to a truck. now i have a motor home with this issue. Ok so I see I may have a problem. Do you know what it can be?I want to be a little knowledgeable when I bring it into the shop so that they don't sell me a bunch of nothing. Thanks for your replyRe: Loosing speed going uphill and revs at 3500 rpm+Yes, I may have to change my expectations. I have a 2005 29' coachmen leprechaun. on a ford e450 V10. Does that help? I am new to driving a motorhome. My 5th wheels never had this problem, but I had a truck hooked up to it. I just didn't expect this.Loosing speed going uphill and revs at 3500 rpm+Hi there I just bought a Class C 2005 Coachmen Leprechaun. When there is the slightest incline the MH just can’t make it. It got down to 45 mph and revved at 4000 and I had my foot to the metal. It was not gonna go any faster. Also between the driver and passenger seats gets very very hot. When the MH was pulled over to rest, we saw NO leaking and all controls were normal. WHat is the issue so I can get it fixed. Thanks for your help Judi