I agree, its normal. You should see the water come out of my Crown Vic. It happens more when it idles for a long time.There are weep holes drilled in lowest point of all of the "canister" like components of the exhaust system, in some cases on each end. The moisture from the combustion process, as well as the ambient temperature and humidity of the environment, collects as the exhaust system cools when you turn the vehicle off, that's what that first "puke" of water out of your exhaust tip is when you start the truck every morning, and the dripping is just the exhaust pressure pushing the remainder of the un-drained and un-evaporated moisture out of the system. you can see where all of the weep holes are by just allowing the vehicle to warm up in your driveway for a few minutes before you move it!
Yeah, the crown vics will build up a lot of water in the tail pipes. When we were doing some training and it was cold and wet out they would acuially build up several ounces in the pipes and start gurgling. One good rev of the engine and woosh, water shoots out about 6 ft.I agree, its normal. You should see the water come out of my Crown Vic. It happens more when it idles for a long time.