Question about Nissan Sentra

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I have nissa sentra 1976 model automatic. tail pipe is smoking, engine oil is reduced oftenly, and spark plug is burned. I had its cylinder head gaskets replaced 3 months ago. since then this problem started. what should i do. tx

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  • Jeff Turcotte
    Jeff Turcotte May 18, 2011

    Hi, it may be time to rebuild the engine. The indication is the piston rings have worn out.

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It sounds like ur valves and valve stems is worn or it can be ur piston rings.hope it helps

Posted on May 18, 2011

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White smoke from tail pipe normally means you are burning coolant. Could be a blown head gasket. With car running, check for sweet smell from tail pipe, if you do, it's coolant burning. Also see if you have coolant running out of tail pipe. You can also remove spark plugs and see if they look clean or like new. Another indicator that coolant is making it's way into engine cylinders. Could only be going into one of all.

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I have a fiat palio 1.2 and there is white smoke coming from the tail pipe and it looks like oil


White smoke is coolant , blown head gasket or cracked cylinder head or cracked engine block ! Blue smoke is from oil burning in the cylinders !

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Impala2005 having a problem with smoke and moisture coming out the tail pipe and muffler with the engine light on


what color smoke?blueish your burning oil.white you may have a cracked cylender head.do a tune up look for water in oil.oil on your spark plugs ..

May 02, 2014 | Cars & Trucks

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#1 CYLINDER WONT FIRE


no year, ?

try a new spark plug e and then if wires to spark plug , replace that too. and cap and rotor if it has that....?????



then when spark is good, check compression with any $20 gauge.

no year, i give up.

1976 accord? surely ive no clue.



smoke has 3 colors, (my rules not ASE)

1 black fuel (flooding etc) can seem gray but is black .

2: white and lingers., oil burning , bad. news.

3: white and fades fast, is STEAM, like moms tea pot, look next time..

smell white smoke, smells sweet, its toxic antifreeze.

smells like oil dripped on an hot exhaust? that is the smell of oil burning



smoke where, under front of car, or at the end of the tail pipe. ?????????????



how you like my smoke rules, even mom can figure it out.

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1 Answer

2005 3.5l some times smokes oil then stops


Smoke oil? For what your thinking that is oil? Smoke coming from the tailpipe is not good news, but does not necessarily mean the engine needs rebuilding. First, you need to determine what color of smoke is coming from the tailpipe
* White smoke is caused by water and or antifreeze entering the cylinder, and the engine trying to burn it with the fuel. The white smoke is steam. There are special gaskets (head gaskets are the primary gaskets) that keep the antifreeze from entering the cylinder area.
* 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.
* Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely. Another term for excess fuel is "running rich." Poor fuel mileage is also a common complaint when black smoke comes out of the tailpipe. Black smoke out the tailpipe is the least cause for alarm.


If you confirm us that is oil smoke, check and keep in mind that 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.

Keep us updated.

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2 Answers

Smoking, ideling rough,


Hi: What Color is the Oil coming out of your Tail Pipe? I'm Assuming its Motor oil and not Transmission Oil.Since you found white looking substance in your oil It sounds like you have a Blown Head Gasket or both.And could be a Crank Block or Head ,Pull your Spark Plugs out, And Have someone Crank engine over and see if you are getting that white Substance Which i assume is Motor Oil.If you are getting ANY out of ANY Spark Plug hole then Is fair To Say you have a Blown Or Cracked Head Gasket.THERES only 1 Other Alternative On Older Vehicles than Yours is ,They Had what was Called a Vacum Modulator That Attached to the Auto Transmission, I worked off of Vacum From The Intake Manifold,And if the Diafram in It went Bad it would **** Transmission Fluid up Through the Intake Manifold and Burn It through your Intake and would come out tail Pipe as a WHITE SMOKE,But it normally would not be in the Enging Oil Or Radiator.So i Would 1st Check the 1st Advise i have Given You.Pull The Spark Plugs. Hope This Helps.Please REply by Voting if this Helped Youat All,Thanks From the WYOCWBOY

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1 Answer

I have oil runing into the cylinders.is this a head gaskit or something biger?


if you mean you are actually burning oil and see smoke out the tail pipe then yes... it is something bigger... you need a head job or ring job

if however, you mean that oil is getting inside where the spark plugs are located then no... this is fairly common with the neon and you need a VALVE COVER set which will include the gaskets for the area around the spark plugs

May 14, 2010 | 2002 Dodge Neon

1 Answer

Blue smoke


Blue smoke is never a good thing....

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.

your engine has worn valve guides, piston rings An engine that burns a lot of oil (more than a quart in 500 miles) is an engine that needs to be overhauled. Normal oil consumption should be a quart or less in 1500 miles. Most newer engines consume less than half a quart of oil between oil changes (every 3000 miles). So if your engine is burning oil, it's essentially worn out and needs to be repaired.
Because the cost of overhauling or replacing an engine often exceeds the value of an older car or truck, many people will just keep on driving a "mosquito fogger" in spite of the blue clouds of smoke it leaves behind. Never mind the pollution it causes, oil is cheaper than a new or rebuilt engine they reason. That philosophy may be okay if you live out in the sticks somewhere. But in urban areas that require periodic vehicle emissions testing, an engine that's burning oil usually won't pass the test because of excessive hydrocarbon (HC) emissions. You may get by on a waiver after you've spent some money (in vain) on a tune-up, but the fact remains you're still a polluter.
An engine that burns a lot of oil will also eventually foul the spark plugs. Thick, black oily deposits build up on the plugs until they cease to fire. Then the engine misfires and loses power. Cleaning or changing the plugs may temporarily solve the problem, but sooner or later they'll foul out again.
Forget about "miracle" oil additives or pills that claim to stop oil burning. They don't. Better to save your money and put it towards a valve job and new set of rings.

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2 Answers

Smoke keeps coming out the tail pipe bad...what should i do to fix it?


you likely have a head gasket issue or cylinder issue. Neither of these is remotely cheap to fix. if the smoke is gray probably burning oil, if the smoke is white probably getting water in the oil from failed head gasket.

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I have a 96 eclipse 2.0 with 150 thousand miles there is blue smoke coming out of the tail pipe smells like chemicals.


Blue Smoke: 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. I that doesn't work then i would get with a mechanic and have it leak tested for possible piston ring replacement.

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