Saw an ad for an '02 1500 with the V6. In part, it states, "The engine light went on during our last trip and we had it diagnosed as a cylinder #6 misfire. We changed the wires and checked the injectors. They were ok, so we think its a bad cylinder. It runs rough at idle but when at highway speeds you cant even tell its missing. It fires right up even after its been sitting for a while." Just before I sold it, I had a similar problem with a Chevy C10 that was diagnosed as a sticking valve. Might this instead be a sticking valve? Were the cylinder bad, wouldn't it be rough all of the time? Or could it be something else, and if so, what? And is this a vehicle worth looking at with the engine problem? It's asking price is $1500, and it has Box 1 miles.