Without knowing exactly what's going on.....and maybe you are just making assumptions and sorta grasping for straws, tunnel vision sometimes takes over!
Have you done some actual hands on testing with instruments???---like.....when it is "glitching", what is the fuel pressure and do you have spark???
This kinda info might turn your diagnosis around 180 degrees (and then again maybe not)
Take this post as an example...dead in the water, then it would fire back up later
Http://www.2carpros.com/questions/2001-jeep-cherokee-stalls-cannot-restarted-random
Just to get you to understanding how i approach my jeeps' evil issues, that come about from time to time
Http://www.2carpros.com/questions/2007-ford-taurus-tune-up
I just don't trust "word of mouth" until i can verify it in writing
As far as maybe not having a manual---i can provide you with one.
Performing tests is all a matter of "actually" cracking down and performing them...and getting the proper tools/instruments needed (many times they can be rented at an auto parts store, or a "get by" version might be found at a place like "harbor freight", etc
Looking thru this manual does take a little practice to find stuff....these are the factory manuals, if you had yours in paper, i could say this is the best you could get....see "online repair manual", 2nd block down, in my link
Http://www.jeep4x4center.com/knowledge-base/index.htm
......this is the best i can do for you, right now
Insure you put in the exact information about your vehicle--should your year not be listed....just move up or down a year
Testing is the key as to an expedient and inexpensive repair
Keep us informed as to what you discover or if you have more questions
And yes,..........you do owe us lunch!....pick us up in your "repaired" rig.
The medic
Wednesday, July 17th, 2019 AT 2:18 PM
(Merged)