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1990 accord ex. i have oil in my airintake. replaced pcv valve it didnt help. whats wrong with my car?
Kirklm
A long shot: If your catalytic converter is failing, there can be a blockage in your exhaust that then increases blow-by past your rings in the engine, resulting in pressure building in your crankcase that forces oil (actually air saturated with oil) past your PCV valve. Had this happen years ago, and had oil in the air cleaner chamber of a Suzuki Samurai. Catalytic converter got worse, pressure increased to the point it would actually blow off the PCV hoses. Also had intermittent loss of power in the engine. Basically the guts of the catalytic converter were bouncing around and occasionally blocking the exit, causing the backup. Unfortunately the shop I took the car to for a diagnosis mis-diagnosed the situation and said I needed a new engine...I put in a new engine and still had the trouble! How to tell if maybe the catalytic converter is going bad? Hit it witl a mallet. If the element inside is loose you will hear it rattle around. Good luck!
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∙ 15y ago
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