Before hooking up a camper to your vehicle, you should make sure that it's ready to haul. Even with a hitch installed, you need to do some prep work to make sure there are no distractions on your vacation.
If your vehicle has a factory-installed hitch, check your owner's manual for the maximum towing amount. The closer you get to this maximum, the more work that your engine and brakes will have to do. Another thing to consider is the weight of your camper. While it may list a certain weight for your camper, you have to keep in mind that this number is for an empty camper.
Another way that you can prepare is to check the route of your trip. If there are a lot of hills and curves, your engine is going to be working harder and can overheat.