JET3180

Ok, since my initial asking about voltage problems, my 95 country has developed a new problem. It dies randomly, sometimes it starts right up, sometimes I gotta wait a few minutes. Today I was travelling 55 mph, tach dumped to 0, I coasted for about 100 yards, put in neutral, and it fired up. It will only idle for about 5 minutes, then dies...I have read crank sensor is problem, as well as coil, cap...ecm....what would you replace first????

Jeepjunky

have you checked codes?
http://jeep-xj.info/HowtoECUcodes.htm

JET3180

No codes, check engine light was on when I had the voltage issues, after replacing alternator, battery, battery and ground cables, the dying, and long crank time issues have started...I am doing the normal cap, rotor, plugs, wires, coil, crank sensor, and then recheck all the grounds, I have put di-electric grease on everything I have checked or changed...not sure but could a gummed up IAC cause the abrupt dying? I did notice oil around my tb and on my air filter

JET3180

Just wanted to give a quick update. I did not have any codes show up, minus the low voltage issue, the check engine would.come on when the voltage gauge would not immediately go to 14 volts. After that issue cleared up, whenever I would start the jeep to let it warm up, after about 5 minutes it would die, and would die often, whether parked or driving at 55 mph, I got good at popping into neutral while coasting. Bought new crank sensor...so far so good. coming soon, new plugs, cap, rotor, flush cooling system, new blower motor and resistor, and gonna start replacing vacuum lines...the ones running to the charcoal canister were splayed open...I will start posting pics on my build page...wild country

raminboy

crank position sensor, it wont even try to start if this isnt working. it is causing the random shut downs. its little bit of a pain to get your hand in there to fix