-30 starts
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Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
-30 starts
So its -30 this morning.
My poor running 94 started and sat there idleing well but had huge clouds of smoke bellowing out of it.
Smoke was whitish with a blue tinge.
What would make it smoke that bad?
It seems to be worst in the cold weather.
My poor running 94 started and sat there idleing well but had huge clouds of smoke bellowing out of it.
Smoke was whitish with a blue tinge.
What would make it smoke that bad?
It seems to be worst in the cold weather.
Elder User
Joined: May 2007
Posts: 943
Likes: 0
From: North East, MD
If its that cold and wasn't plugged in I'm impressed it even started. Its gonna smoke even if gp system is functioning properly. Don't worry about it unless it keeps doing it after the truck warms up than you may need injector o rings
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Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
Theres nothing common about how this thing runs ,Ive been having issues with it.
Hotshot
Joined: Dec 2006
Posts: 14,069
Likes: 17
From: Melbourne, Ky
Need to check fluid levels. Anti-freeze and motor oil. One or the other may be getting into the combustion chambers. As wmiller asked, did you have it plugged it? In that extreme cold, it my contine to smoke for a while. The only way to really get these engines warmed up is to use them. Idling won't do it enough. Could the thermostat be stuck open? That would allow the engine to not warm up, and continue to smoke as well. Dose the heater work properly? If not, the thermostat could be the problem. Just throwing out possibilities.
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Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
Whatever is wrong with it just gets worse when its cold.
Its been running poorly and smoking for a couple of months.
I just thought maybe someone might click on something seeing how it gets worse in the cold?
I bought some injector o-rings I havnt changed them yet , maybe that will help?
Its been running poorly and smoking for a couple of months.
I just thought maybe someone might click on something seeing how it gets worse in the cold?
I bought some injector o-rings I havnt changed them yet , maybe that will help?
Postmaster
Joined: Jan 2004
Posts: 3,207
Likes: 0
From: Kearney, Nebr
Don't worry about it. If the truck was not plugged in its going to take some time for the combustion temps to increase especially at idle. There's also steam coming from the exhaust as well.
As far as injector o-rings, it would be hard to tell on a cold start. Especially at those temps.
As far as injector o-rings, it would be hard to tell on a cold start. Especially at those temps.
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Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
White smoke is normal for a cold start. -30 F or C and it started is really good.
The engine will never warm up sitting at idle. Prop a stick on the throttle (1500 RPM) and go have a coffee or go for a ride and get her hot. The white smoke should go away.
The engine will never warm up sitting at idle. Prop a stick on the throttle (1500 RPM) and go have a coffee or go for a ride and get her hot. The white smoke should go away.
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Thread Starter
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Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
Im not kidding , its MAJOR smoke Im talking.
Postmaster
Joined: Jan 2004
Posts: 3,207
Likes: 0
From: Kearney, Nebr
Nice observation.
Vinford do you have gauges? A pryometer reading give some idea of combustion temps. I know with my rig if my temps do not get above 300 after a start it will smoke for a very long time. Does it clear up once the engine is warm?
If your o-rings are on their way out, she should smoke at idle or maybe even have a miss. Does she bog down at high rpms?
Vinford do you have gauges? A pryometer reading give some idea of combustion temps. I know with my rig if my temps do not get above 300 after a start it will smoke for a very long time. Does it clear up once the engine is warm?
If your o-rings are on their way out, she should smoke at idle or maybe even have a miss. Does she bog down at high rpms?
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
Either way it's still very cold.
-30F = -34C
-30C = -22F
Does it go away with after it gets fully heated?
The blue smoke is oil...getting past the piston rings or o-rings that haven't totally sealed (swelled) due to being so cold.
I'm still surprised a "poor running engine" started in sub-zero temps.
Mine, a good running engine, does the same thing. It's especially noticeable if it's not windy or I fire it up in the barn
.
It bellows smoke (white w/a touch of blue) for a mile or two of driving in sub zero temps.
If I stop and let it idle, which happens a lot, the coolant temp drops way down and the smoke reappears but goes away pretty quickly after a couple hits on the go-pedal.
-30F = -34C
-30C = -22F
The blue smoke is oil...getting past the piston rings or o-rings that haven't totally sealed (swelled) due to being so cold.
I'm still surprised a "poor running engine" started in sub-zero temps.
Mine, a good running engine, does the same thing. It's especially noticeable if it's not windy or I fire it up in the barn
. It bellows smoke (white w/a touch of blue) for a mile or two of driving in sub zero temps.
If I stop and let it idle, which happens a lot, the coolant temp drops way down and the smoke reappears but goes away pretty quickly after a couple hits on the go-pedal.
Logistics Pro
Joined: Jan 2005
Posts: 4,129
Likes: 4
From: Brandon, MB
I haven't even bothered to try mine. Mind you, it was -37 C this morning when I left for work. I'll re-register her when the temps warm up. I'm pretty sure mine wouldn't start even if I wanted it too. Plugged in is another story, but not plugged in..... Wow, just be glad she turned over....