Don't know if this is the right thread to post on. I have a '02 F350 power stroke that is giving me fits. Have not had any problems until recently. It will run fine at times, and then starts just shutting down on the side of the highway. I have changed out the fuel filter. This has not done any good. You can feel it starting to get sluggish, sometimes it will catch back up and run ok, but other times it will shut down on you. The last few times, I have gotten it back home after letting it sit for awhile, but really need some ideas on where to start looking for the problem. Any ideas appreciated. I have noticed that the engine light will come on sometimes, but always. Thanks.