Does any one give some suggest that why smoke is coming when Engine start in winter session?

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By info.tariq86
By Jamil1985• 26 Dec 2023 20:12
Jamil1985

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By anonymous• 11 Jan 2012 09:22
Rating: 5/5
anonymous

Your engine piston ring or cylinder valve roil rings are loose and needs replacement.

Go to a workshop and request for a cyliner "compression test'; itwill determine if a "top overhaul" to replace the above are required.

By anonymous• 11 Jan 2012 09:04
Rating: 5/5
anonymous

That answer it’s the best, (breathing on winter)

More technical, while engine cold there is sensor responsible to measure the engine temperature and give signal to ECM (engine control module) which is going to increase the race RPM and more fuel to heat up the engine at first time starting (while engine on cold condition) so more fuel will give more black gas from the exhaust, and because the exhaust is freezing, so water will come together with black gas, but if it’s white smoke, you have to do engine overhaul and repair, because it’s oil smoke not gasoline.

Good Luck

By anonymous• 11 Jan 2012 09:04
Rating: 5/5
anonymous

That answer it’s the best, (breathing on winter)

More technical, while engine cold there is sensor responsible to measure the engine temperature and give signal to ECM (engine control module) which is going to increase the race RPM and more fuel to heat up the engine at first time starting (while engine on cold condition) so more fuel will give more black gas from the exhaust, and because the exhaust is freezing, so water will come together with black gas, but if it’s white smoke, you have to do engine overhaul and repair, because it’s oil smoke not gasoline.

Good Luck

By anonymous• 11 Jan 2012 08:05
anonymous

It is cuased by a hot air mixing with a cold air. It's like when your breathing in the winter morning outside your house.

By postmodernman• 11 Jan 2012 07:46
Rating: 5/5
postmodernman

probably not big of a deal. Not that it is a bit cooler outside, my guess is that your metal engine parts have contracted a bit - metal shrinks when its cold. My guess is that a gasket or perhaps your piston rings (if your engine is a bit older) have contracted a bit which means their may be a bit of residual oil in the piston chamber. When you start the car, you burn off that oil in the first few seconds - boom you have a puff of smoke.

My car has different squeaks and rattles this time of year, probably for the same reason.

It would only be an issue for you if the smoke continues long after you start the car. Then you have a real issue.

Just check to make sure you have enough oil in your engine every week or so. I'm sure you'll be fine.

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