Question about 2003 Nissan Altima
Posted by Anonymous on
Could be oil smoke, it's white with a slight blue tint. If the engine was not properly maintained or abused, the piston rings can wear. Worn piston rings might allow oil from the crankcase to pass into the combustion chamber; there, it will be burned and pushed out the exhaust.
Posted on Apr 04, 2015
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Posted on Jan 02, 2017
1st check the the oil level and the vehicle's oil type.(owners manuel) 5w30-10w30
10w 30 is a thicker oil and could possibly be causing this.(Moves more freely through the engine heats the oil)
Posted on May 17, 2009
It sounds normal white smoke comes from moisture in the air as it's burned and the air temprature is different. it creates steam they gray smoke is a little harder to decide what it is, normally gray smoke is related to oil burning and black is over fuel, depending on how many miles it has on it it could have bad valve guide seals but would not worry about it.
Posted on Sep 11, 2009
if you have white smoke in your exhaust, you have a blown headgasket, and if you 626 is turbo'd and depending to the tubo is cooled eg antireeze, then coolant could be leaking out that way too. also it would be helpfull to know what the steam is coming from. BUT since you mentioned that is coming from the exhaust, it woud wager that its a blown head gasket. you can veryfi this a number of way. take out your spark plugs one at a time and have a look at them. if a couple look "too clean" or seam to "steam cleaned" compared to the other ones = lack carbon build up etc, then the plug that you took out is the cylinder where the engine coolant is leaking into. also, you can do a compression test = which ever cyclinders are super low = blown gasket is located on that cylinder. PS if you do have a blown head gasket, you should replace your oxygen sensor as well because the glycol in the antifreeze wrecks the O2 sensor.
Posted on Jul 08, 2009
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