OK here's some history. I swapped a 4.9 out of a f150 into a 95 bronco. I've been drive it for about a month now with little to no problems. Until now.
I was driving down the interstate at about 70 MPH when it just shut down. I was in 5th gear the engine was turning but not running. I held the clutch in and gave it gas a nothing. Tried starting it and the starter just grinded like the motor was still turning. I put it in 4th gear dumped the clutch and it took right off. The after that every time I hit a bump it would die out again but not at bad. then it got the where it would just sputter when I hit a bump.
I'm inclined to think its something in the fuel system but it's got a new tank, fuel pump and fuel filter any help would be great

 

Pull EEC codes and see if it tells you what's wrong.

Otherwise I'd guess a bum fuel pump relay or loose wiring/ground connection.

 

There are no codes. It happened last night it was cold a raining hard. I checked for codes last night both KOEO and KOER got an all clear on both
It's not raining today I'm gonna check it out

 

maybe a faulty inertia switch?

 

It was one of the wires came loose on the connector for the coil it was on enough to run but when I hit a bump it would lose contact and stopped firing. Thanks for the help everyone