My 1998 jeep cheorkee engine turns but won't crank, could it be the computer or what?

U need to check the crankshaft position sensor. The fuel pump will only have power for 2 seconds I till it sees a crank signal. It' controls the asd relay which turns on your spark and fuel

I would start by going to an auto parts store and having them scan the computer for codes, even if the engine light is not on. i have heard about auto part stores saying they can not scan if light is not on. i am not sure if it is the scan tool they use or what but sometimes there could be a pending code where the computer is waiting to see the problem again before turning light on. if this is the case then ask them to scan it anyway or go to a shop and ask them to do it. the reason for this is that these trucks have crank sensor problems.

the next time is dies check for spark, remove a sparkplug wire and place a screw driver into the boot of the wire and place it near a ground, a metal surface and then have someone crank the engine and see if there is spark. if there is no spark or you got a code of the crank sensor then i would replace the crank sensor, but if you have good spark and truck will not start then try spraying starting fluid into throttle body and see if it starts and dies out if it does then fuel pump problem.

If you have a fuel pressure gauge then hook that up and crank engine and see if you have fuel pressure and how much.

I will say that this does sound like a bad crank sensor, it dies and then wont start for a while ...

Sluggish engine turnover can be the battery but won't be caused by gas. A problem related to gas would be more apparent after the engine is running.

Could be the crank sensor is bad but If the check engine light does NOT come on when cranking at the times when it won't start, then your ECU is in need of repair. The engine will only start after the check engine light comes on and the ecu is what controls that. It's likely going bad, causing the delayed start problem typical of early 90's jeeps. Repair or replacement services for your jeep ECU are available on ebay.

No.
The crank sensor tells the computer when number one cylinder is at top dead center to find the timing for the spark plugs.
If the engine will not crank with the starter, the starter, key switch, battery or cables could be faulty.
Some of these items could also cause it not to start.
If the engine is stuck you won't be able to turn it at all.

when you state it wouldn't crank, do you mean the starter won't engage or that it just spins over and doesn't start? if no gauges or no starter engagement, then check the battery, battery connections,and the starter for excessive amperage draw. if the starter spins and the engine won't start, then check crankshaft position sensor first. the crank sensor is a more common failure than the distributor or any of the other things you mentioned.

No spark and no fuel at the same time could mean the ECU computer is bad. Try reading the codes from the computer to see if it will still function and show codes.

I'm not sure what you were looking for on the chat......I told you the problem but for some reason you were still unsatisfied.

TRANSMISSION SENSOR FOR A GRAND CHEORKEE 2002

sounds like your crankshaft sensor is faulty.I would change that first.