I recently purchased a 1997 F250 CCSB 7.3. It was driven over 100 miles from the owners house to mine. It drove fine over the mountain pass and was stopped a couple times to make sure nothing was wrong. About a hour after it was parked the engine would not start when I tried. The batteries were dead so I bought some batteries for it. It still wont start. The previous owner had recently replaced the starter and glow plugs. There also is a leak but I am having trouble locating where it is coming from. When I turn the key I can hear movement in the engine and the tach moves a little bit. Does anybody have a idea of the reason why my truck wont start?

 

It could be a bunch of things

From no fuel, to bad glow plug system, to no oil, to a blow fuse, etc