who knows what your friends could have tweaked as they wrestled with the oil filter.
check all your electrical connections.
next time, take one of your other 3 vehicles and go to your local parts store, they have caps that fit over the end of oil filters and accept a 1/4" drive ratchet... makes things real easy.

it should be pretty obvious where the plug wires fit onto the cap, they ought to nearly "fall into place".
If not, while at the local parts store pick up a haynes or Chilton manual, they will have diagrams of firing order and where your plug wires need fall on the dizzy cap.
I'm also curious if the old oil filter seal was left in place.

 

you guys have made my night! thank you! im hoping this works and that i can show my dad that its safe to drive...do you guys know what parts i would need and where i can buy them online?

 

we did use one of those, it didnt work my friend works at minute lube and changes oil all day lol we tried a million different ways to get it off. he said he had never seen one cranked on there that bad before...

 

The first thing i would do is get the spark plug wires back on in there right spots and then go for a drive to see how it run and drives.

Here's a link that shows what wire should go where on the cap and should help you alot, the pic is at the bottom of the page.

http://www.jeepforum.com/wiki/index.php/4.0L_I-6

As for the oil i would really just leave it until next oil change then switch to the different type of fluid.

Once that done then look for a broken wire around the oil sensor.

 

it wont let me click the link

 

I would deff look at the wire harness. Did u say 1 quart??? I hope you put more then 1 quart... A I6 4.0 needs 6 quarts or you will damage your jeep really bad from lack of oil. Deff check the whole firing system and make sure you have 6 quarts of oil.
As for the high milage oil goes some people prefer regular oil, some prefer synthetic. I would use high milage with anything over 70,000 miles. You said like 350,000??? I would go high milage, full synthetic, and LUCAS oil treatment JMO

 

^ used 5 quarts of oil and 1 quart of lucas i think

 

what could have happened is the sensor or wire for the sensor got messed up and that threw the computer off at least thats what Im hoping happened

 

hmm weird let me find you a better pic then

 

Wow... me neither...

 

Ok here you go this one will work just turn the pic upside down so you looking at it fro mthe passenger side and should be good to go.

http://www.2carpros.com/forum/automo.../12900_4_2.jpg

 

man I was behind the times with my last post stupid at&t internet
yeah for sure make sure the firing order is right and check out that oil sensor then you should be on your way down the road again

 

Ok my question to you is this,Where in ct are you located cause I can come to your jeep and help you figure this out,I live in the northwest corner. But yeah check your sensor and firing order and all your plug wires.

 

man next time i have a problem, I am going to post that I am a girl who needs help lots of replies ASAP lol

 

LoL yeah this is probally the fastest replied to post before along with the highest number in a short period of time lol.