My 4.0L 98 XJ developed a noise that is very concerning over night. After a 15-20min drive home in the evening the Jeep was in normal operating condition. So this is my Daily Driver and when i started it up the next morning, i had this noise. I bought and performed the work and got it running and this is what I've got. I removed everything necessary to remove the cylinder head, and replace the lifters, i re-installed everything and im stuck with what to do next. it dosent sound like rod knock or piston slap.. any help is appreciated..
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