Get yourself a scangauge 2 from Bullet Proof Diesel for $170 pug it in and check the difference between the oil and coolant temps. Should be less than 15 deg after you have had it up to temp and running down the highway. If it is over then you need to negotiate an egr cooler delete and an oil cooler replacement into the deal. The FICM voltage should be 48 volts or greater. Have the Ford dealer pull an oasis report on it so you can see the warranty service history and you know you are not looking at a problem child. Look at the fuel filter under the hood make sure its not full of crud. There are to many posts on this site of people that bought a truck and brought someone else’s expensive problem home! If you don’t know what you are looking for on a 6.0 take the truck to a diesel shop that does. Without a tool like a Scangauge or Edge Insight you or just hoping on blind luck that the truck you get is the truck you want. Read the sticky posts and you will have a good idea of what you are looking for. I would look for an 05 – 07 and when you buy one be ready so spend some $$$$ on maintenance , fluids and filters, STC fitting , EGR delete , Oil Cooler. I can’t stress the monitoring solution enough, because the factory gauges are little more than dummy needles and don’t provide much real info. Buy the time the factory gauges move out of the “normal” position you already have an expensive headache on your hands.
Good Hunting , Welcome to the .ORG
Last edited by HAM_RADIO_MAN; 06-14-2011 at 04:20 PM.