cold start smoke problem? - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 01-27-2012, 06:38 AM Thread Starter
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cold start smoke problem?

just cold started the truck this morning, it wasnt plugged and its snowing this morning but its probably between 20 and 30 degrees, so not too cold. i let the glow plugs go for probably about 30 seconds, then cranked and she fired right up no problem, but with a big puff of black smoke when it fired and while it was idling after it started instread of the normal white smoke, it hazed out black smoke . why is it doing that? am i about to have a problem? TIA!

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post #2 of 6 Old 01-27-2012, 11:42 AM
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Black smoke is usually one of two things, excess oil burning off, or excess fuel.

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post #3 of 6 Old 01-27-2012, 02:14 PM Thread Starter
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it was definetly excess fuel, could tell by the color and smell. so is that normal? its never done it before

-Conner

1997 F-250 Long Bed Extended Cab
--7.3 Powerstroke E40D Auto
--4.10 Rear End
--280,000 Miles

-Napa 6637 DIY CAI
-3 inch DP, 5 inch under truck, 6 inch Mitre!!
-2nd gen Wicked Wheel from Dieselsite
-Tony Wildman 6 Position Chip
Broke College Kid Mod
Now residing in LARAMIE, WY for school at the University of Wyoming! Hit me up if youre around, I'm always down for a hot rodding adventure

"Never cut what you can untie"
--Buckaroo Proverb
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post #4 of 6 Old 01-30-2012, 10:57 AM
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Maybe you have an injector sticking open? I would think cold start though it would still just white smoke with fuel as the cylinder temps are too low to properly combust the fuel. Im not sure.

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post #5 of 6 Old 01-30-2012, 11:06 AM
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Does the truck only smoke black from a cold start? Or does it do the same if you get it up to operating temperature, shut it down and then re-start?
Any way you could post up a video?
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post #6 of 6 Old 01-30-2012, 05:27 PM Thread Starter
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i dont know about a video, it only blows black at startup if its cold, it seems to always do that but it only hazed that one morning. if we get anbother really cold morning im sure itll do it again, other than that at operating temp it will smoke when i rev it and puff a little at higher speeds when i get on it

-Conner

1997 F-250 Long Bed Extended Cab
--7.3 Powerstroke E40D Auto
--4.10 Rear End
--280,000 Miles

-Napa 6637 DIY CAI
-3 inch DP, 5 inch under truck, 6 inch Mitre!!
-2nd gen Wicked Wheel from Dieselsite
-Tony Wildman 6 Position Chip
Broke College Kid Mod
Now residing in LARAMIE, WY for school at the University of Wyoming! Hit me up if youre around, I'm always down for a hot rodding adventure

"Never cut what you can untie"
--Buckaroo Proverb
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