So I'm thinking about putting a hitch on my 2004 Deville to pull a 2,000 lb popup camper. I currently have a RIM C0660 Level Control Exhaust Valve Circuit Malfunction code, so I'm not sure my ride height leveler is working. I also have been noticing hesitation from 1st to 2nd gear on the transmission. Will pulling a camper exacerbate these problems? What else should I be concerned about with doing this?