ScWift92

Hey ClubLexus i have an sc300 with 220k on it today i went to start it up from siting for a day and all of a sudden it starts smoking (blue) out by the exhaust manifold so i shut it off and let it sit and when i start it again it didn't smoke immediately but only when i gave it gas and then it started bogging out and began smoking again (blue).....

Keep In Mind Just Had Finished Changing Negative Battery Terminal Before Problem

Things To Keep In Mind

Cold Day 27 degrees
Car Didnt Want to hold an idle on first start
No CEL
Slight Oil Leak But Oil Levels Are Good

Thanks

ScWift92

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ScWift92

And it magically stops.

crave456

ur oils is leakin go get it check it out

Silverpaws

I have always heard that when blue smoke is coming from the exhaust, that is an indication that oil is getting past the piston rings, which may be worn especially on a high mileage engine, and burning in the combustion chamber. Simply stated, blue smoke is usually indicative of burning motor oil. Finally, an engine will not run very efficiently if it is burning oil.

deathsled

blue smoke is oil. It could be leaking past the rings, leaking valve stem seals, or something really simple like an aging PCV valve that is letting some oil into the intake. It's just a sign of wear on the motor. Not much you can do for it aside from maybe using oils made for higher mileage vehicles (unless cleaning/replacing the PCV valve solves it).

A lot of cars will sometimes do this in the colder months. The engine is cold and so is the oil so it doesn't lubricate as quickly when you first start it up. Once things get lubed and warmed up the smoking stops.

It has nothing to do with changing a battery terminal. The idle issue was probably just due to the ECU resetting thus it needing to relearn/recalibrate to get your idle back in check.

xspsi6

iTrader: (31)

Very common issue is the valvestem seals.

1JZPWRD

iTrader: (59)

Exactly what it is. Oil is getting past the rings or seals. Change the pcv valve and see what it does.

ScWift92

changing pcv 2m morning then we will see