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I have a 2008 dodge nitro 4.0 had a misfire code on number three cylinder so I pulled it upper intake off and ran compression on all 3 cylinders on the right side 2 cylinders was good they were they around 126 psi but No# 3 was at 18 psi . So I removed the rocker arm assembly and did a smoke test and it looked like smoke was coming out around the valves . So I took the head to a Machine shop . They checked all the valves check the head for cracks it cost me over 350.00 for one head . Make a long story short with a New head gasket’s new head bolts basically I reworked head and I still have the same problem but this time I didn’t smoke test it I pressure tested it with 80 psi and soap water and it looks like it is coming out for the oil return hole . But that doesn’t make any since. Because it’s not blowing out of the dipstick two or any other return holes. If anyone has seen this or have any ideas I’m open for any thing