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Blue Smoke out of Exhaust

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Old Oct 18, 2005 | 10:36 AM
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Blue Smoke out of Exhaust

It was brought to my attention that when ever i get on my car blue smoke comes out of my exhaust. It is not that noticable. Only whenever I seem to get on it is when the smoke comes out. Any ideas what the problem could be?


yes i know blue smoke = oil
thnx in advance
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Old Oct 18, 2005 | 10:42 AM
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Originally Posted by PEOPLExpress
It was brought to my attention that when ever i get on my car blue smoke comes out of my exhaust. It is not that noticable. Only whenever I seem to get on it is when the smoke comes out. Any ideas what the problem could be?


yes i know blue smoke = oil
thnx in advance
I thought blue smoke was coolant and that white smoke was oil. I could be wrong...
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Old Oct 18, 2005 | 10:46 AM
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might be you exhaust valve seals letting in oil in the exhaust. ive seen it happen a few times.
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Old Oct 18, 2005 | 10:56 AM
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From: somewhere testing various tires, brakes, and suspensions.
Blue is oil, white is coolant.

Are you sure its blue or just blackish smoke. Blackish is unspent fuel. Evos run rich, and if you have mods (no cat, fuel pump...) you will see the smoke when you get on it.

Check your fluid levels, if you are low on oil than you could be burning some off the pistons or as said above in the valves. If you have coolent in your oil, or oil in your coolent then its a headgasket issue. Nose around for anything suspisious.
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Old Oct 18, 2005 | 10:59 AM
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Originally Posted by Warrtalon
I thought blue smoke was coolant and that white smoke was oil. I could be wrong...
I thought that too, but after just looking this junk up. Blue is oil and white is coolant.
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Old Oct 18, 2005 | 10:59 AM
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Blue is coolant, not oil.
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Old Oct 18, 2005 | 11:08 AM
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Originally Posted by sleet
I thought that too, but after just looking this junk up. Blue is oil and white is coolant.
Hmm, it appears we're all whacked out. Razo just said what I said, but I really don't know. I do know that the Camaro SS whose bumper I was attached to while road racing was choking me out with white smoke everytime we slowed for corners and then sped up again. I thought it was a coolant leak, but my instructor and then the SS driver himself both told me he was burning oil from something, so I don't know. It wasn't bluish at all...it was straight up THICK white smoke.
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Old Oct 18, 2005 | 11:08 AM
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From: somewhere testing various tires, brakes, and suspensions.
RazoEvo not to be an ****, but you are wrong, google it.

http://www.google.com/search?hl=en&q...oke+out+of+car

Note first to links, one for blue, one for white....
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Old Oct 18, 2005 | 11:11 AM
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thick white smoke (from the exhaust) is usually coolant.

bluish white is oil.

on topic, how many miles on your car and are you using any oil. I know there was light blue smoke on my rally car when the turbo shaft seals start to let loose. Valve stems seals are also another common source of oil leakage.

Last edited by Greg K; Oct 18, 2005 at 11:18 AM.
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Old Oct 18, 2005 | 11:11 AM
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From: somewhere testing various tires, brakes, and suspensions.
Did he have an out of engine oil leak? Like oil hitting the exhaust manifolds? That will cause thick white smoke. When it mixes with gas and combusted it turns blueish.
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Old Oct 18, 2005 | 11:14 AM
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Originally Posted by SmikeEvo
Did he have an out of engine oil leak? Like oil hitting the exhaust manifolds? That will cause thick white smoke. When it mixes with gas and combusted it turns blueish.
Yes, that's what it was and why I was confused. He didn't have an internal oil leak, which is why they weren't worried.
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Old Oct 18, 2005 | 11:17 AM
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Originally Posted by Greg K

on topic, how many miles on your car and are you using any oil. I know there was light blue smoke on my rally car when the turbo shaft seals start to let loose. Valve stems seals are also another common source of oil leakage.
i have like 15,700 give or take a few
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Old Oct 18, 2005 | 11:21 AM
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If you're worried, pull the turbo inlet tube and see if there's any shaft play, if there is the turbo is the cause.

If not I'd put my money on valve seals. A little bit of valve seal oil loss is not uncommon on boosted cars, I would just monitor the oil level even more cautiously than I usually would. Leaky valve seals won't cost you an engine, unless you run out of oil.
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Old Oct 18, 2005 | 11:24 AM
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From: somewhere testing various tires, brakes, and suspensions.
Originally Posted by Warrtalon
Yes, that's what it was and why I was confused. He didn't have an internal oil leak, which is why they weren't worried.
Yep, I have had something similar happen to me too. Sometimes at the track when its bad enough you can get black flagged for it.
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Old Oct 18, 2005 | 11:26 AM
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np, thanks for clearing that up, ive been thinking it was coolant, thats what i remember from uti anyways.
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