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.
Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing