Thursday, January 7, 2010

Can transmission oil burn out of my exhaust?

I have a 1994 Mx-3 and the tranny is leaking. that is one of the problems i now of, But there is also blue smoke coming out of my exhaust on start-up, even when the engine is warm. It doesn't smell like a rich mixture, it smell burnt. The mechanic told me that it's oil that was spiled , and it should be OK after a few days, but after 2 weeks, it still smells burnt, and there is still blue smoke





Can anybody help me ?





appreciate it





Thx





ChrisCan transmission oil burn out of my exhaust?
tranny fluid can leak into exhaust...i had a ford pickup truck that the tranny modulator went bad the smoke was white and there was a lot,,,a real lot.....blue smoke is usually from bad rings or bad valve sealsCan transmission oil burn out of my exhaust?
If tranny is leaking, then any oil leaking out can be burned off by heat of engine and tranny casing. There's no way to have leaking tranny oil get into the exhaust system and burn blue smoke. It's like saying that having the ';runs'; in your gut causes you to cough. Two different systems.





Used to be a saying that white smoke in your exhaust was okay, but blue smoke meant trouble. Blue smoke in exhaust means that there's oil leaking into the spark plug chamber where the gas is being burned.


That's motor oil, not tranny oil. The seals on the spark plug chamber are getting worn, allowing the oil into where it is burned, and then goes out in the exhaust.





There's all kinds of good oil stop-leaks at Walmart, Checker Auto or Auto zone. Get one that's about $5 or more, it'll be better protection.


This is to add to the motor oil, it helps to seal small leaks so that the oil doesn't burn anymore, and hopefully can stop the blue smoke. But blue smoke has nothing to do with tranny fluid, whether it's leaking or not.
No





Transmissions are not tied into the exhaust system. But leaks can get onto your exhaust and will smoke until burned off.





The blue smoke could be a number of things but if it always smokes then it sounds like your rings are allowing some oil to get into the cylinder. Fixing this would require ring replacement which if you decide you should just go ahead and rebuild it all. Expensive





Ifyou plan on keeping the car do the rebuild when it gets worse or if not try using a heavier weight oil.
If the transmission is vacuum operated, yes, this is possible. In this case, the trans uses engine vacuum from the intake manifold to shift gears.





Those days are long gone, though. About 15 years long gone.
Impossible

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