goblinish15

I replaced my alternator. then my jeep wouldnt start because my oring going to my fuel rail was busted. i didnt realize that so i started messing with the spark plug wires. I then fixed the o ring. it started. but then i had started messing with the spark plugs wires. i set it up to where there was a big BOOM! i kept switching them up. i hve spark and fuel. it was just running. but now i cant even get a back fire from switching them around. any one have even a clue?!?! the diagrams i find are ridiculous and i cant find the number one spark plug location on the cap.

goblinish15

would it possibly be flooded?

goblinish15

my plugs were soaked! and soooo black!

goblinish15

bumpage!

judbgrdmchn

Engine type & year please.

goblinish15

88 4.0

freegdr

Use this use dist cap screw as reference point...

judbgrdmchn

And forgive my ignorance, but is it a V6 or I6?

Well hopefully it's an I6 & your problem is solved.

goblinish15

thank you for that diagram! v6 or I6? when did cherokees have a v6? did they? its an i6. i waited overnight to try starting it again when i got home rom work. It now fired one cylinder just once. so now i at least have a responce. i picked up new plugs on my way home from work so i will throw those in there soon and see what happens. i will also use that diagram freegdr thank you!

salad

4.0 is an I6. 86 was the last year for the GM 2.8L V6, the only V6 in XJs.

judbgrdmchn

Here's something that happened to me. I had the order slightly incorrect, it ran rough, I shut it down, it didn't even turn over after that, only heard the click of the starter engaging. We touched a voltmeter to the battery to test it & it started right up after that.

goblinish15

Threw all new plugs in there and used that diagram and BOOM it runs like a dream! thanks guys!

goblinish15

So 2 days have gone by and now it jsut wont start again? would it maybe be the spark plugs are fouled again? what would be fouling them??!?!?!

F1Addict

Have you done the C101 connector and ground refresh?

https://www.cherokeeforum.com/f51/cr...x-tips-153657/

kennzz05

wtf?