Question about 1995 Honda Odyssey

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Blue smoke in morning start up

My 1995 odyssey is blowing out bloow smoke in the mornings when cold can it be a seal thats leaking or is it difinitly the engine? i been told different things the engine is not knocking but sometimes going up a hill i hear as if something is lose muffler or can it be the pistons??? please help

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Blue smoke is indicitive of a blown or leaking piston seal - allowing oil to be combusted with the gas.
a slow leak is not really bad - if it is only occuring in the am - after the engine cools and tolerances in the engine widen.
You start getting into problems when the smoke is present while driving or accellerating.

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Posted on Jun 02, 2009

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If it constantly is blowing out smoke trhen it sounds like you rhead is cracked. head gaskets or something in that area. it will run but ****. alos try an oil change if u havnt already..

Posted on Jun 02, 2009

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Ur head gasket

Posted on Jul 06, 2009

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Sometimes startup smoke can indicate worn/damaged seals on valve stems that allow oil to drain down into the cylinders overnight. I cured a 305 chevy motor by simply replacing the square cut o-ring seals that are fitted on each valve stem in a groove. Heat and time had cracked some and caused them to let oil dribble on down the stem and past the worn valve guides. Several cylinders were so bad that spark plugs would foul after 1000-2000 miles if that. Problem solved at low cost.

Posted on Jun 02, 2009

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Posted on Jan 02, 2017

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This might help explain the causes and where the fault might lie! You didn't mention the mileage, if high it could be worn valve guides or seals!

Blue smoke is an indication of oil being burnt. The oil can enter the combustion chamber for several reasons.
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As for how it's getting in there, that depends on how the car has been maintained. How many miles are on it.
First thing you should do is check your oil level. Make sure it's full. Keep track of your oil consumption for at least a week. Knowing how much you are using up can give you an indication how it's getting in there.

This could mean worn rings and cylinder walls or bad valve seals. It could also mean a crack in the block. This might shed some light on the cold air problem as well. Especially if your car overheated recently. Regardless what the cause is this is not a week end job. If your not comfortable with the thought of engine parts laying around find a good mechanic.
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If it's the org. engine it will has over 60,000 miles on it.
It's normal to has the valve stem seal/oil seal on the head to leak oil into the cyclinder.

The smoke you see is the motor oil drop from the valve stem seals.

It land on the top of the cyclinders and it create black smoke at start up.

The inexpensive fix is to start using high mileage oil with seal conditioner.
This will help soften the rubber seals and help reduce internal oil leak.

The correct fix is to wait until it's time for a head gasket replacement and let the professional service the head.

Complete head service is the only method to stop this internal oil drip problem.

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Cold startup


If it's the org. engine it will has over 150,000 miles on it.
It's normal to has the valve stem seal/oil seal on the head to leak oil into the cyclinder.

The smoke you see is the motor oil drop from the seals.

It land on the top of the cyclinders and it create black smoke at start up.

The inexpensive fix is to start using high mileage oil with seal conditioner.
This will help soften the rubber seals and help reduce internal oil leak.

The correct fix is to wait until it's time for a head gasket replacement and let the professional service the head.

Complete head service is the only method to stop this internal oil drip problem.

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If it's the org. engine it will has over 200,000 miles on it.
It's normal to has the valve steam seal/oil seal on the head to leak oil into the cyclinder.

The smoke you see is the motor oil drop from the seals.

It land on the top of the cyclinders and it create black smoke at start up.

The inexpensive fix is to start using high mileage oil with seal conditioner.
This will help soften the rubber seals and help reduce internal oil leak.

The correct fix is to wait until it's time for a head gasket replacement and let the professional service the head.

Complete head service is the only method to stop this internal oil drip problem.

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