As far as P0302 and P0305 go the coil rail fires cylinders in pairs, 2 and 5 are pairs.

As far as #5 cylinder is concerned, I would try some Mopar Combustion Chamber Cleaner (from the dealer) instead of/in addition to, the Seafoam. Mopar Combustion Chamber Cleaner works real well if you go by the instructions on the can.

If you say you don't have coolant in your oil, don't use coolant, and [if]you didn't see coolant in your rocker area when you had the valve cover off, I don't think you have a cracked head issue.

 

if i recall it cracks between #3 & #4 itl have the cast number on it somewhere i forget if its passenger or drivers side about half way back. but you said number 5 is the problem. im not sure if it could crack there. if it is the 0331 head replace it asap so you don't have a problem in the future.

 

Thanks for your help though. Ill take a further look.

 

Is the oil pressure good?

 

According to the factory gauge.

 

Is the tire pressure good?

 

I agree with Ken on this one. I almost always agree with Ken.....!!

 

Why are you making fun of me asking about the oil pressure? The operator stated they recently got their Jeep. Who is to say that the PO did not change the oil or flush it for that matter and then turn around and sell it to a unwary buyer. The problem with troubleshooting from afar is I do not know the whole story. I have not heard it run. The 0331 head is notorious for cracks, which I am sure you are aware of, which can cause problems with coolant and or oil. I am just trying to see if the oil pressure is low to see if there may be an issue with a fried cam bearing/bearings.

 

Ahhh...now I see you were serious. I thought you were jerking the OP's chain for some reason.

Generally, when one asks a question, not relating directly to the OP's original problem, an explanation of why you are asking the question would help.

 

Got you! Sorry for the misunderstanding.