White Smoke When Cold
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Senior User
Joined: Jan 2009
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White Smoke When Cold
When I start my truck in cold weather it seems like it smokes white for way too long. I know that they are supposed to for a little bit, but mine is for like 5-8 minutes and then it starts getting better. But then when I take off down the road it is just rolling out white smoke, and it will do this everytime I take off for a while. Does this mean I have some bad glowplugs? Or does this mean my injectors have seen better days? I would think injectors because this is happening well after the engine has started and is slightly warmed up. And it doesnt sound like it is missing any.
Posting Guru
Joined: Dec 2009
Posts: 2,322
Likes: 2
From: Dairy, OR
I think I would start with checking the fuel filter level after it sits all night. White smoke is unburned fuel, normal when you start them cold for a few minutes. Lot's of smoke to me says lots of fuel.... You might have a leaking injector or two that is just soaking the engine in fuel when it's sitting overnight.
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Senior User
Joined: Jan 2009
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5-20 degrees. Im thinking the injectors are leaking pretty bad. This would explain the white smoke when cold, and the black smoke under no accel when warm. And maybe this could be the cause of my horrible fuel mileage?
Fleet Owner
Joined: Jul 2006
Posts: 20,347
Likes: 802
From: Mi'kma'ki
im getting about 30 seconds to 1 min of white smoke at the cold start in these temps.
i know a lot can be different.but hopefully my low millage rig can give some insight of how things should be when right.
iv got no signs of black smoke at any time either caleb.
i know a lot can be different.but hopefully my low millage rig can give some insight of how things should be when right.
iv got no signs of black smoke at any time either caleb.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
At temps below about 15 degrees, moisture in the exhaust condenses and leave white vapor trails from the exhaust.
White smoke when first started at low temps is common.
You may have leaking injectors, and that could add to the white smoke.
First after the engine is warm, does the exhaust still have a strong fuel smell?
White smoke when first started at low temps is common.
You may have leaking injectors, and that could add to the white smoke.
First after the engine is warm, does the exhaust still have a strong fuel smell?
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Senior User
Joined: Jan 2009
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I dont think mine is normal white smoke trails. Mine is like a cloud of white smoke on the first couple take offs. And idk ive never really paid attention to the smell lol. I will one of the next couple days.
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Elder User
Joined: Mar 2008
Posts: 912
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From: Marianna, Florida USA
How many miles on it? If you are experiencing bad mileage, your injector pop off pressure may be too low (worn out). You need high pressure to get the fuel to atomize properly so that it will burn completely.
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