Blue Smoke out of Exhaust
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
yes i know blue smoke = oil
thnx in advance
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
yes i know blue smoke = oil
thnx in advance
Joined: Apr 2005
Posts: 9,002
Likes: 12
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.
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.
Originally Posted by Warrtalon
I thought blue smoke was coolant and that white smoke was oil. I could be wrong...
Originally Posted by sleet
I thought that too, but after just looking this junk up. Blue is oil and white is coolant.
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Joined: Apr 2005
Posts: 9,002
Likes: 12
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....
http://www.google.com/search?hl=en&q...oke+out+of+car
Note first to links, one for blue, one for white....
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.
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.
Joined: Apr 2005
Posts: 9,002
Likes: 12
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.
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.
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.
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.
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.
Joined: Apr 2005
Posts: 9,002
Likes: 12
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.



