What would cause my 1995 ford bronco xlt to just quite while driving and then...

[Handyman]

I had a vehicle in the other day , you could be driving it down the road and it would do the same thing , everything would check out ok ,so i took it out for a test drive and it did it again , i got out and raised the hood pulled the fuse box cover off started messing around with the relays , i decided to turn the key on , but i didn't hear the fuel pump come on so i wiggled the relay to the fuel pump and i heard it click, so i walked around to the inside of the vehicle and turn the key over the vehicle started right up . Replace the fuel pump relay and haven't had any more problems with it, so make sure that your fuel pump relay is good and that it's in tight.

 

[wildhonkey2000]

...start back after it sits? I just drive down the road and it runs great but every so often the engine will die with no warning and I have to roll off the road. I wait a a while sometimes minutes or a few hours and it will start back up and run like there is no problem. Some times when I park it and go back to it then it will not start either. But it runs great when it is started it doesn't lack power or anything, it shifts perfect as well. The mechanic changed the fuel pump and fuel filter and cant seem to trace the problem, ignition module and various other things. I had a test ran on it at the dealer and he said the marine battery and the throttle position sensor was the only thing that came back. I replaced both, the coil, ignition module, and every other possible part. There is nothing else left to change and nothing can overheat because it is almost zero here.

Does anyone have any suggestions. I have had 5 mechanics look at it and they can't trace it. Would the computer cause this or does anyone have any suggestions.