smoke
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smoke
Just a question. I started up my truck today letting it warm up before hooking up my trailer, and I noticed smoke coming out the exhaust while idleing. Is this normal for the 7.3's? It wasn't a lot but enough to catch my eye. I also have black soot around the tail pipe.
9 ECHO 1
Joined: Aug 2009
Posts: 12,467
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From: Missouri
White smoke - Something in the cylinder that shouldnt be (coolant, oil, unburned fuel)
Black smoke - excess fuel for the amount of oxygen in the cylinder, commonly called "running rich".
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VIDEO0003.3gp - YouTube
This is what it does when I start it up. It usually smokes for around a minute then clears up. What do you think?
This is what it does when I start it up. It usually smokes for around a minute then clears up. What do you think?
Logistics Pro
Joined: Dec 2010
Posts: 4,738
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From: Temperance, MI
If it blows white smoke like that when you start it cold its normal, the cylinders are cold and it should clear up almost right away. If you had an AIH Delete and it was below freezing you wouldnt believe the amount of white smoke it will pour out the exhaust until it warms up. You dont have anythig to worry about
Cargo Master
Joined: Jun 2010
Posts: 2,771
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From: Louisiana
Could just be a bad glo plug on one cylinder and while warming up the air in that cylinder isn't as warm and is not burning the fuel as efficiently as the rest. Something to try would be testing your injectors! Problem may worsen in colder weather. All in all not that unusual.
Postmaster
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From: AL, Reform
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Cargo Master
Joined: Jun 2010
Posts: 2,771
Likes: 3
From: Louisiana
Could just be a bad glo plug on one cylinder and while warming up the air in that cylinder isn't as warm and is not burning the fuel as efficiently as the rest. Something to try would be testing your injectors! Problem may worsen in colder weather. All in all not that unusual.
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