On jeep gerokee 4.0 engin cut out while driving and starts again sometimes when stopped.

SOURCE: 2002 jeep cheroke misfires on cylinder #4

Check intake gasket and vecuum hoses near intake runner #4. To do this spray carb cleaner at parting line between manifold and block while engine is running. If leaking rpm will dramatically change. A leak will lean out that cyl and cause misfire

SOURCE: 1999 jeep grand cherokee transmission

This is called limp mode chrysler did this to protect the transmission without leaving the owner stranded by the road,a few things will cause this mainly putting the wrong fluid in the transmission,they use only atf+4,or the govenor pressure sensor is acting up which should cause a check engine light to come on,or the transmission just needs a fluid and filter change,should be done every 2yrs or 36k miles,due the fluid and filter change about 40.00 but if you have the wrong fluid then the whole system needs to be flushed and refilled-transmission-torque convertor,radiator and cooler if equipped and all lines.

SOURCE: Engine cuts out while driving, have to restart engine then works.

Ignition system. For failures that cut out like this is a common sign of a ignition system failure

SOURCE: 2001 jeep grand cherokee 4.0 engine shuts off

it is possable/likely a bad ECTS (engine coolant tep. sensor), this can cause the injectors to allow to much fuel into cylinders and cause a low compression and or flooding situation, good luck, marty

SOURCE: 03 TOYOTA RAV 4 CRANKS

have scanned if light is on. it may be a bad or failing crank sensor. for the sensor controls timimg, it will stop engine while driving. have a good day!!