I was driving home Sunday in my 95 1500 6.5 and was heading up a hill it dropped down in to passing gear to go up the hill and died I coasted to the top and pulled of the road went to start and my lift pump wouldn't kick on I changed the lift pump and tried to start still wouldn't kick on so I changed my oil pressure switch for a new one still no lift pump. I jumped the fuel relay and lift pump kicked on but went to start and just cranks over no fire at all. Glow plugs work I checked they have power. Really stumped needing help.

 

Have you checked the fuse that is under the hood and did you make sure that you were in park?