OK, so it alled started around christmas time when i lifted my jeep and got the new tires I ended up getting cylinder 3 misfire, replaced plugs, week latter check engine light on.... changed the coil pack.... check engine light came on and im thinking that I have a vacumn link just have know idea how to find and fix it. help anyone?

 

Have you gotten the CEL scanned or are you just throwing parts at it trying to resolve it?

 

So you have JUST a cylinder 3 misfire code? Devil is in the details with OBD.

With a single cylinder misfire and the fact that you changed plugs and the coil rail, the next thing to suspect is the fuel injector. You could try swapping the injector from #3 to another cylinder and see if the misfire follows to that cylinder.

Unless this is happening just when the engine is HOT, then it might be heat soak, a pretty common problem on your vintage.

Also....keep a close eye on your coolant reservoir bottle. Your vehicle from the factory, came with the "infamous" 0331 cylinder head, which is prone to cracking, especially with an overheat, and when it does, it can lead to misfires.

The #1 symptom of a cracked 0331 head is unexplained coolant loss.

 

it has been scanned and now im getting nervous as to how costly that would be to fix and what should i do in order? I m thinking about taking to the shop .

EDIT: this is full time and it still drives ok does idle kinda high at 1k at starte but gets too 500 when warm any help would be good

EDIT2: I will also get a detailed scan again tmmrw and post the results

 

OK, got the the scan and the next thing that was on the list of probable causes was the vacumn leak, so i really need help with what hosing i need and where to start for trouble shooting this leak.

 

There are about 50 possibilities.

DETAIL any symptoms that go along with your codes.