98 JEEP CHEROKEE

[frank72]

Hello Jeep World have a ? When driving down the road my cherokee shuts off with NO warning and doesnt start back up for about 30min- 1hour. Was told this could be a ECM problem just want to know before I spend 200 - 300$ dollars on one. Does anyone have any solutions on my dilemma.
98 cherokee w/ 4.0L, 4x4,Sport edition, and A/T

 

[bimmerjeeper]

Any codes?
Search around.

Auto shutdown relay? Swap the shutdown relay with the A/C relay for a few days and see if your problem goes away.
Screw shorting out the ECM?
Grounds?
Loose battery?
CPS?
Fuel Pump?
Coil?
Coolant temp sensor?

Also
http://www.naxja.org/forum/showthread.php?t=979567

 

[gradon]

It's probably the crankshaft position sensor. If you open the hood and lean in from the driver's side fender, look at the fuel rail closest to the firewall. There is a wiring connector junction that is held in place by the last fuel rail bolt/stud. That is the crank sensor. Try unplugging it and replugging it next time it cuts out on you. You may need a new sensor(get the oem/mopar from the dealership).