Question about 2002 Suzuki XL-7

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Exhaust smokes when engine starts

Burning oil when engine starts, front passenger spark plug has oil on it, also when you accelerate hard with the gas pedal down it smokes and knocks.can't find engine diagram showing cylinder layout or firing order either.

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  • Suzuki Master
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Most common reason for that is worn valve stem seals and or guides or gunk buildup in the cylinder head blocking oil return holes.... Or, broken piston ring or burned piston lands. (use compression test to verify that) Knocking can be from oil detonating in cylinder or bad rod bearing etc.

Posted on Sep 24, 2009

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Posted on Jan 02, 2017

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2007 ford 4.0 v6 why are all my spark plugdls on passenger side oil soaked but drivers side is fine doesn't smoke did compression test all good not a blown intake gasket had it checked anyone know?


Hi Josh:
I'd put fresh plugs in it and drive it for a week, then check the plugs.
Sometimes you will get high compression readings that are not valid because the rings are soaked in oil so they think they are sealed when they are not.
With the engine off, you could try removing the oil filler cap when the engine is hot, then restart it. A little vapour is OK, a lot indicates bad valve guides, head gasket,or ring blowby.
Also, try checking inside the exhaust tailpipe. If it is oily sooty it is also an indication of possible ring problems.
Review the maintenance history. How many miles on the engine? Could be the engine is getting tired.

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1990 Corolla started shaking after I accelerated rapidly (gunned the engine)


White smoke coming out of exhaust is water vapor. Blue is oil burning and black is carbon from unburned fuel.
U have water or coolant leaking into your combustion cylinders - not a good thing. Probably blown head gasket.

Check your oil - if it like a brown mud then the coolant has also gotten into the lubrication system.

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My car is burning threw oil like supper fast


year, make, model, engine size?

How does it run?

Do you see a lot of black smoke out the tailpipe when you accelerate?

do you see anything leaking?

Apr 04, 2013 | Cars & Trucks

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Oil on plugs that burn white smoke


I would`nt be too worried about the oil on spark plug threads be more concerned about white smoke! it sounds like head gasket problems.Good-luck.......

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1992 es300 blue smoke from exhaust


The most common cause of blue exhaust smoke is oil leaking past engine seals and into the cylinders where it then mixes and burns with the fuel. Oil leaking into the cylinders can cause a rough idle, misfire and fouled spark plugs. So best bet is to have a local repair shop inspect for internal oil leakage.

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Engine will start and idle but wont go when i mash gas pedal


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Sep 09, 2012 | 2003 Dodge Grand Caravan AWD

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Accleration, exhaust smoke.


Sounds like you have a fuel-to-air ratio problem causing you to exhaust raw fuel from your exhaust pipe. you could have bad fuel injector, fuel pump, or carborator, if you don't have fuel injection system. Running that way for extended times will fill your engine with carbon deposits that will need to be cleaned up. Also could lead to excelerated piston ring wear. Be sure spark plugs are working properly to insure fuel is igniting. Since spark plugs are ignited via the distributor and ignition coil(s), this system should be check if spark plugs are having irregular ignition. Check timing to insure distributor is working properly. If you have changed gas from premium to regular, this could reduce your engine power, assuming that timing was adjusted to the previous gas. Check owner's manual for proper fuel usage.

Sep 01, 2012 | 1994 Volkswagen Jetta

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Running rough and white thick smoke from exhaust


sounds like you are burning coolant. sounds like you have a headgasket issue or cracked block. is your coolant level low?? in the overflow bottle and in the raadiator? something tells me that you will find that coolant is low. you are pulling coolant into the engine and it goes into the cylinder and pass the exhaust to the back of the car. the white smoke is the coolant burning off and thats why the car runs rough, because coolant is not flamable so it doesnt burn. this results in the spark plug not firing right and having rough running condition.

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My 95 tahoe seems to be burning oil. #3 cylinder had a fouled plug. i fixed that but it smokes when i accelerate hard & i dont know where the oil keeps going.


Do a cylinder leak down test

It will possibly tell you if the rings are an issue

The other problem would be valve seals

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