1988 Jeep Cherokee turns over but won't start

The gas u put I'm the tank was high octain if it was it was making the engine fire to early replace the gas and it should wor properly

0 miles to service is just the main reminder, this tells you when to change the oil, you just need to reset it but has nothing to do with the no start, you will need to test for fuel, have someone bang on the bottom of the fuel tank while you try to start it, the most common reason is the fuel pump goes bad and by banging the bottom of the tank while starting it shakes the pump and makes a contact to get pump going again, if it starts then the pump is bad and needs to be replaced, good day,

Sounds like the fuel pump is going out. Replace the filter first, as it's only $10. If that doesn't fix it, then it's probably the pump, which is $250.

gummed up!!! run 108 octane booster!!!!

Check for electronic ingition problem, especifically the ignition module.

does your jeep run rough? idle is real low? and when you are driving and push the gas hard it doesnt want to move? if so it is most likely the mass air flow sensor. i had to replace that 2 or 3 times on my 1999 jeep cherokee

check the battery to make it is fully charged and also put some dry gas in the gas tank

If you keep your tank under 1/2 rust can form on inside of the tank causing the fuel filter to get clogged. I'ld check that first. When your remove filter, if it's a rusty color gas that comes out, I'ld bet that's your problem.

It sounds like you have some **** in the gas tank that is being drawn to the pickup blocking it.
Have seen this and because it seems so random, it can drive ya nuts.

You might carry a coffee can with you and pull the line from the fuel rail when this happens stick it in the can and just have someone turn the key on for a few seconds.
Beware though, it comes out with force.

Also possible is a failed fuel pressure regulator.
Those aren't expensive and . . . well, not very good either.

do you have to wait a while after it cuts off before you can start it again? If so, it is probably the crankshaft location sensor which is mounted on the bell housing @ the front of the transmission, driver side, up rather high, it can be reached from below, it has one plug in wire and I believe one or maybe 2 mounting bolts. Countrycurt0