Smoking exhaust !!

[limoncello]

Just curious - black smoke on hard acceleration could be unburned fuel (seems unlikely with hi-tech engine management) or accumulated carbon somewhere along the line. Anybody have thoughts on what the source of the smoke is?

[Brucelee]

Impossible to diagose as you would have to see the smoke and observe other issues. The service shop is where you belong with this issue.

Esp if engine light is coming on!

[JCTPM]

Thanks for everyones insight. The car is a 2000 Boxster S with 47,000 miles. It's white smoke that billows out of the exhaust, even at idle it smokes. But after awhile, say 2 minutes, it goes away. I'll call up a shop to have it looked at.

[Brucelee]

Based on what you just stated, I would be more concerned about the check engine light than the white smoke.

Keep us posted.

Good luck!

[JCTPM]

The check engine light also went away. It's just weird. I'm gonna get it checked out to be on the safe side. I just went to check my oil level and it's really high. I'm gonna drain some of it out and see what happens.

[Morelli]

Originally Posted by JCTPM

Thanks for everyones insight. The car is a 2000 Boxster S with 47,000 miles. It's white smoke that billows out of the exhaust, even at idle it smokes. But after awhile, say 2 minutes, it goes away. I'll call up a shop to have it looked at.

Ok, is it WHITE, or bluish/gray? A lot of people see light colored smoke and just say it's white. When it is white, it's not smoke, it's steam/condensation. If it is white when it is coming out, then you need to check your coolant, which is usually what is burning off when you see the white smoke. If the coolant is milky, you could have a crack in your sleeves. If the smoke is bluish or grayish, then you are burning oil. This could be caused by burnt piston rings, chipped pistons, etc...

Bottom line, any smoke coming out of the tailpipe when your engine is under load is not good.