i have a 1996 gmc 4x4 with 6.5 engine.parked in driveway next morning would not start,turns over but want crank.the truck has 114000 miles pump was replaced at 50,000.replaced pmd truck still does not crank.replaced oil pressure switch at 90,000.thought i got bad fuel changed filter and put new fuel in filter still dead in the water.any ideas please let me know.

Welcome aboard new member. Take a few minutes to update your signature line as per "Welcome New Forum Member" Sticky at the top of forum threads index.

Next, cruise on over to the FAQ sticky. (Can be clicked below in my signature line) Check out LIFT PUMP/OPS and diagnose first fuel supply issues.

During cranking, are you getting any smoke, white maybe?

i have a 1996 gmc 4x4 with 6.5 engine.parked in driveway next morning would not start,turns over but want crank.the truck has 114000 miles pump was replaced at 50,000.replaced pmd truck still does not crank.replaced oil pressure switch at 90,000.thought i got bad fuel changed filter and put new fuel in filter still dead in the water.any ideas please let me know.

Welcome aboard new member. Take a few minutes to update your signature line as per "Welcome New Forum Member" Sticky at the top of forum threads index.

Next, cruise on over to the FAQ sticky. (Can be clicked below in my signature line) Check out LIFT PUMP/OPS and diagnose first fuel supply issues.

During cranking, are you getting any smoke, white maybe? no white smoke

While cranking, crack open an injector line, see if you have fuel getting to the injectors during cranking. No fuely, no starty.

i'll try that and let u know what i found thanks.