Having problems with your 2003 Honda CR-V ?

Smoke in the engine - 2003 Honda CR-V

Posted / edited by AnonymousUser on : 17-06-2019

Answers :

White blue or black,,,oil.is seeping through to the pistons from the valve stems or piston rings,or to much gas ,or a blown head gasket,
Dear Polumuri,

Now there are three types of smoke here that we will need to consider, and it is the following general rule that applies.

Black = Fuel/ incorrect carburation of petrol or diesel
Blue = oil, mechanical components are seriously worn or damaged
White, grey or foggy = fluid or liquid based

Now knowing this will point us in the general direction of where we need to start investigating, but any form of smoke within the engine bay should be investigated without delay, as there is stuff within the engine area that is flammable.

Head gaskets are common problems that will throw out a lot of smoke, but there are tell tale signs of this, firstly is an engine which is running unusually hot, the second being cross contamination of oil and water; meaning that oil is present in the water and vice versa, this will obviously cause a lot of smoke buildup, and if left untreated, it could seriously damage your engine.

It might also be worth performing a cylinder compression test on the car, if the cylinder compression is low then this indicates worn parts, morst commonly these parts are piston rings, and when petrol/ diesel is burnt, oil is also ignited because it is able to pass up to the combustion chamber as the rings are no longer effective, this is where you get your blue smoke.

Anything producing grey smoke, is usually the start of more serious problems, and the source of this should be ientified as quickly as possible in order to prevent further damage.

If there is anything further that you can tell me regarding this issue, then please feel free to let me know, as I feel this will be important in being able to correctly identify the fault and resolve this for you.

Like I said, lets start with the basic visual inspections and a compression test on those cylinders and see where we go from there. By the way you can purchase a compression tester yourself, and it works by removing a spark plug, plugging in the compression tester and it will give you a reading of either good or bad.....if its bad, then either you will have to high compression, or too low), if its good, then we can rule out piston rings and damaged con-rods (connecting rods from piston head to crankshaft).

I hope this is a good chunk of information for you to get started, and also that this is the fixya for you; in the meantime, if you think of anything additional regarding this problem then please do let me know.

Yours sincerely

Repair Help & Product Troubleshooting for 2003 Honda CR-V

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