Ok, so ill start with i let a good friend of mine borrow my jeep, (he is having major vehicle problems), well this morning i was following him to host job site and we stopped to get gas, (we both got the exact same amout and grade), then we got back on the road. About 10 mins down the road the jeep made a loud pop and choked down, died and would not start back up, it acted like it wanted to and came close a couple of times (it turns over but doesn't crank). So i hooked to it and pulled it on to the job site. At the end of the day we tried to crank ot again and it fired right up and ran like nothing had ever happened, it ran great for about 5 miles, (enough time for it to warm up) and then choked down and died again.
I replaced the fuel filter thinking it may have been bad gas (but then i remembered i got gas also at the same time and my truck ran great all day) and i also tried bypassing the gas tank by running a fuel line to a gas can and it didn't help. At first i thought it may have jumped timing but i gave up on that idea when it cranked fine while cold.
Its getting gas and fire. We worked on this jeep and scratched our heads all day
Please help, im at my wits end.
88 wrangler yj ..... straight six