ok here is a little history. couple months ago the 4.0 overheated and shut off, and spun a bearing. ive replaced the rotating assembly, but ever since it overheated that last time i have had a random no crank issue.

if it wont crank with the key i just jumped the starter relay and it was fine. but no its nothing. i can here the fuel pump kick on when i turn the key over but no starter. i jump the relay and its the same thing. ive switched out starter relays i had laying around. but to no avail. any ideas?

it got to the point where it wont start when i need it to. just went outside and it started, turned it off again and tried to start again, nothing. WTH

i cant seem to find my volt meter so im having a buddy bring his over tonight. what do i need to check or where should i start?

 

Neutral start switch?

 

I've tried putting it in neutral and jiggle it in park. Fuel pump but no crank.

Like I said I went out earlier and it started right up. Shut it off to try again. NOTHING.

 

Crankshaft Position Sensor maybe. Did you say you can run a jumper wire and start the engine? If so check your igintion switch. Or maybe your starter. I HATE ELECTRICAL ISSUES. There is too much magic involved with electricity. Good luck man

 

welcome to the world have having a Renix jeep when they run good they are amazing... all it will take is some time to go through these steps to get ther if you have any other questions after reading just ask
https://www.cherokeeforum.com/f51/cr...x-tips-153657/

 

The photo brings ideas to mind. Water and mud do not mix well with electrical components.

I would click on the link Rooster suggested and go in this order:

#1, #3, #10.