I was wondering if it is normal to have low compression on a rebuilt motor in some cylinders. On #1 and #4 I have 150psi while the rest have 180psi on my 4.0l engine out of my 99 Cherokee lmtd auto 4wd.
Not sure if something got messed up when the map sensor failed on break in or if this is typical of a break in and the rings just need to seat again (engine ran fine first few starts and heat cycles)? Thanks!
Not sure if something got messed up when the map sensor failed on break in or if this is typical of a break in and the rings just need to seat again (engine ran fine first few starts and heat cycles)? Thanks!
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