Q: 80% clyinder leakage on all cylinders

asked by on February 16, 2017

engine started running erratically then died would not restart. checked fuel pressure and ignition system both ok. checked compression on the 3 cylinders on the right bank about 60 psi on all 3. I assumed it had jumped time. pulled it apart and all timing marks line up. used a cylinder leak down tester and all cylinders showed 80% leak down. I cant hear any air escaping from the valves, I have both cam covers off and the oil pan, I don't hear any air leaking past the rings. WHAT AM I MISSING !

My car has 145000 miles.
My car has an automatic transmission.

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