Dead jeep

[RDOGG]

Need help 91-93 yj 4.0 crusing down frwy and she stops running turns over but wont start have gas its dark im tired will check spark tommorrow can you guys tell me what to look for ? And were its at thanks

[aw12345]

If no spark and you do all the basic stuff like power to the coil and such, then the crank sensor could very well be the culprit. Other than that ASD relais, fuel pump relais. You kinda have to narrow it down.
On Chrysler vehicles when crancking the ecm gets a crank signal from the cranck sensor then it activates the asd relais and the fuel pump relais
This gives power to the ignition system and fuel pump
From there the ignition and the fuel injectors will do their thing

[RDOGG]

Thanks ART I'll check that out when i get home .Rick

[tgregg]

When mine went bad my symptoms were the same as yours. It seems to be a weak link and it is kind of buried and not a quick easy change. I'm thinking of spares I should be carrying and that is one of them. Fuel pump and starter being a couple of others.

[Drewminator]

Sounds like the fuel pump to me from what you described.

[Old Fart]

X2 on the fuel pump. My 94 had similar symptoms - for a while it would die at speed - you could push in the clutch, switch the ignition to off and back on again - let the clutch back out and she'd fire right back up. Changing the pump cured it.