White smoke at first start of the day, 2.0 JTDm - Alfa Romeo Forum
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White smoke at first start of the day, 2.0 JTDm

Hi, I have a problem with a 2.0 JTDm. When I start the engine goes through the exhaust white smoke. It happens only first start of the day, then it will not happen all day. The first start is not good, it takes longer than the engine starts. Thank you for your help
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Hi, I have a problem with a 2.0 JTDm. When I start the engine goes through the exhaust white smoke. It happens only first start of the day, then it will not happen all day. The first start is not good, it takes longer than the engine starts. Thank you for your help
Happens to me too mate.....sometimes. 1.9Jtdm. No idea why......yet.
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Originally Posted by columbiec View Post
Hi, I have a problem with a 2.0 JTDm. When I start the engine goes through the exhaust white smoke. It happens only first start of the day, then it will not happen all day. The first start is not good, it takes longer than the engine starts. Thank you for your help
There always seems to be a lot of water in the exhaust system (or steam out of the tail-pipe) after the first start of the day. This is on my 2.4JTD and has always been the case for the 70,000+ miles I have owned it.
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This can be caused by a few things, faulty injector(s) adding too much fuel or incomplete combustion due to low temperaures in the combustion chamber. Can be caused by low compression on a particular cylinder or a faulty glow plug.

A faulty /dirty injector could be allowing fuel to trickle into the cylinder when the engine has stopped due to the pressure in the common rail, then once you start the engine it gets ejected down the exhaust when the engine first starts. If the quantity was enough it could also leak down past the piston rings and gradually make the sump oil level rise.

You will never be cool driving a Vauxhall, especially if it catches fire.
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Originally Posted by symon View Post
This can be caused by a few things, faulty injector(s) adding too much fuel or incomplete combustion due to low temperaures in the combustion chamber. Can be caused by low compression on a particular cylinder or a faulty glow plug.

A faulty /dirty injector could be allowing fuel to trickle into the cylinder when the engine has stopped due to the pressure in the common rail, then once you start the engine it gets ejected down the exhaust when the engine first starts. If the quantity was enough it could also leak down past the piston rings and gradually make the sump oil level rise.
Had a similar problem on my 2.4 which was the glow plugs. I would start there if I were you. Tests are quick and easy to carry out as is replacement. Eliminate those first perhaps.
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