| Has been posted a few times recently Causes, in order of what I would personally troubleshoot: 1) PCV valves (Remove oil fill cap, put your palm over it. excessive pressure can mean bad PCV valves and/or bad rings) 2) Valve stem seals (Will only smoke when cold/startup) 3) Piston rings (Dry vs. wet Compression, leakdown test. Leakdown through the oil fill cap means worn rings) 4) Turbo seals (No way to troubleshoot on car, pull the engine)
------------------------------------------------------------------ 1992 300ZX NA 5 Sp (Dead) 1990 300ZX NA Auto 2+2 (Dead) 1990 300ZX TT 5 Sp (Building) 2004 G35 Sport 6MT (DD) |