Went out this morning and did the vacuum leak check and there doesn't appear to be any leaks.
A buddy came over to see if he could be of any help. He's a Ford guy to the core but as long as he's not visible from the street he'll help work on a Jeep -LOL. We picked up the loaner fuel pressure tester and a compresion tester from the parts store and first checked the fuel pressure. The spec is 58+/-2 psi and the tester was indicating between 60-68 psi...not sure if it was really that high or if the loaner was just old and tired and not reading accurately. We started going through the service manual and thought maybe the MAP sensor was bad causing it to send bad vacuum data tot he PCM so we swapped it out with a new one. Didn't fix the problem. When we were installing the new MAP sensor I pulled out the dipstick to put a little of the oil on the O-ring and noticed what appeared to be water or coolant on the dipstick. I opened the oil filler cap and removed the insert and there was a lot of moisture foam residue lining the fill tube. I can't believe I hadn't even check that prior to this. Here are a couuple pics.
On the list for tomorrow is to do a Cylinder-to-Water-Jacket test and a Cylinder compression test. I'm assuming at this point that there is either a leaking head gasketor a cracked cylinder head
or block
.
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