2000 jeep cherokee stopped running, turns over wont start,next day fires right up runs then quits, starts right up runs for five minutes then quits,starts up again ??? I read that the fuelfilter is on the tank with the regulator ? someone said maybe the coilbar , doesnt have a reg distributor??

I think you should buy repair manual first for your vehicle after that it will be easy for you to solve the problem. Check the link may be you will find something useful here
2000 grand Jeep Cherokee

As when front elevated, possible small leak on fuel pipe, check connections, air getting in fuel runs back to tank, so when starting, has to pull fuel back up before starting

It sounds like you do have a relay problem try switching relays around that have the same part number start with the starter relay when switching the make sure the key is off each time

check to see if sparkplugs are fireing....

If you have compression, spark at the right time, and fuel spray at the injectors, it should start.
The coil could be weak, the fuel pressure could be low, among other things.
Did it quit running, or just not start one day ? Have you checked the computer for trouble codes ?

Fuel pump. The valve in the pump that stops the fuel from draining back into the tank is not working so you crank and crank until the fuel gets up front. Turn the key on but not to start for 5 seconds then off do it five times and then try to start it should start right up

It could be the security system or maybe a crank sensor.

your injector or fuel pump may be going out, next time when you check the issue, check your distubutor again and making sure you getting sparks, if you do have sparks than it has to be your fuel problems.

The crank position sensor is on the bell housing of the transmission, very hard to see, on passenger side, below the valve cover, depending if it is an early 2000 or a later 2000 model.

Hi Jeepers,

The fan will occassionally continue to run for five or ten minutes after the vehicle shuts down. This is normal.

What is not normal is if it keeps running until the battery drains.

Does it just keep running?
If it eventually shuts off, how long does it take?
Did this just start happening?
The two days you mentioned, were they short trips, opposed to the third day?

If you would comment me back with some more details, it would help me help you.

Mike