Hi guys. Newbie from Oz.
98 Cherokee 4.0 dies when it gets hot. If I was to go up a long really steep hill or drive 10 kms in soft beach sand the engine will die and not fire up again until it cools down, generally about 30 - 40 minutes. It runs OK until I idle the engine to look at the scenery then it just dies. After 30 - 40 mins it will fire up as though nothing had happened. Water temp stays on 95C (200F) I'm thinking it may be a fuel vapour lock or something like that.

 

check your thermostat. was happenin to me. that did the trick.

 

Thanks, I replaced the thermostat recently, but as I said the water temp is OK.

 

oh. i see. hows your radiator. maybe needs burped?

 

Sounds like it could be the idle air control motor or the crank sensor.

 

Opinion has it that it could be the Crankshaft position sensor. I replaced it today, so we shall see if its fixed.
I had trouble finding it as people were saying its tucked up under the exhaust manifold. Wrong, its attached to the flywheel housing, cow of a thing to get to.

Bill