Well, I haven't pulled a camper with my '08 V6 4x4, but I do pull a fishing boat.
This boat tow can be quite a tow, over 11000 ft passes are common for me here in Colorado. The boat is approx. 1500 lbs, but loaded with camp gear and firewood, rear cargo loaded to the window level, make that 2500 lbs. No problems at all, more responsive that my previous Expedition. This T4r is quite a little workhorse.