Blue smoke is caused by engine oil entering the cylinder area and being burned along with the fuel air mixture. As with the white smoke, just a small drop of oil leaking into the cylinder can produce blue smoke out the tailpipe. Blue smoke is more likely in older or higher mileage vehicles than newer cars with fewer miles.
How did the engine oil get inside the cylinder in the first place? The car has many seals, gaskets, and O-rings that are designed to keep the engine oil from entering the cylinder, and one of them has failed. If too much oil leaks into the cylinder and fouls the spark plug, it will cause a misfire (engine miss) in that cylinder, and the spark plug will have to be replaced or cleaned of the oil. Using thicker weight engine oil or an oil additive designed to reduce oil leaks might help reduce the amount of oil leaking into the cylinder.
2006-12-08 13:42:42
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answer #1
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answered by Anonymous
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I agree with Spinner. Oil smoke while under heavy accelleration usually means the valve guides are worn pretty bad. There are rubber covers that go over the top of the guides, which the valves ride up and down in. If those are worn/old/broken, oil seeps past and you get blue smoke, mostly during hard acc' or start-up. You can replace them, but they aren't a quick replacement item. You don't have to pull the head to fix the problem, but you do have to disassemble the valve locks, springs, rockers, etc' to do it. You have to be sure not to let the valves fall into the cylinder when you take the valve locks off. These rubber guides just pop onto the top of the valve guide and seal the leak. If the guides are nearly worn out, which is all too common, you will ave to do a more extreme job, like replace the valve guides themselves, which only a good machine shop should do.
2006-12-09 00:22:03
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answer #2
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answered by Me N 2
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This is most likely an easy Fix.... 88% of the time its the Valve Guide Seals... thats it.... Many Bad shops get rich off this repair telling the customer they need an Overhaul, Rings, Rebuilt head etc....
SO lets start at the basic's Compression Test
this will tell you where your at. If its 120 psi on each or more Then you just need the Valve guide seals...
If 95 to 115 psi rings and cylinder walls worn.
If below 95 Rings most likely burn't Need that over haul
And have the head rebuilt...
I agree with everyone that you need Valvoline High mileage oil and some kind of Additive... O reilys has some additive that is to help recondition seals inside the motor and thats it... If I find the name with let you know... It well help but if your compression is good Replace the Valve Guide seals.
In the Chilton's manual it shows you what you need to do this job
Good Luck and Happy motoring...
2006-12-08 22:33:47
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answer #3
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answered by Spinner...428 6
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Blue smoke is the sign of death in the future... lol no really the engine is consuming oil, does it smoke when you shift gears, a little puff? or does it pour out the pipe when you get onto the throttle?
most likely 1 of 2 things. Valve guides are going bad in the heads..... Replace head(s) or have them rebuilt.
2. Piston rings are worn allowing oil to blow by.... replace engine or rebuild engine.
Might try a bottel of STP engine oil treatment in a blue bottle, it looks like thick honey. try it if it helps, do a bottle every oil change.
can find at Napa auto parts store, Walmart sometimes may have it.
2006-12-08 21:45:31
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answer #4
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answered by truckfxr 1
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The blue smoke means you are burning a lot of oil. I suggest getting the rings on the pistons checked. I don't know of any additives or treatments that will help. Good luck.
2006-12-08 21:42:55
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answer #5
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answered by waitin4luv 1
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i own a repair shop,and you can try some stp oil treatment in it,,and also use a thicker oil,,its starting to burn a little and this is typical for the Mazda,s to do when they get a few miles on them,and it may also have a bad head on it,,but id try making the oil a little thicker,,this may cut down on it a lot,,without going in to a major engine repair ,,good luck with it,i hope this help,s,,have a good x-mas.
2006-12-08 21:43:42
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answer #6
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answered by dodge man 7
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Blue smoke means oil burning, which means you have a leaking seal or gasket somewhere. Have the engine checked.
2006-12-08 21:44:29
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answer #7
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answered by dukefenton 7
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That sounds like your piston rings or needs a valve job.
2006-12-08 21:52:57
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answer #8
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answered by ? 4
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thicker oil would be about the only thing. make sure your pcv valve and hoses are working and in good shape. if they are clogged or leaking, it will do what you are saying it does.
2006-12-08 21:41:52
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answer #9
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answered by gearhead_35k 4
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use an oil additive like stop-leak
2006-12-08 21:40:54
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answer #10
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answered by earthgirl766 3
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