Harsh Exhaust Smell - Cold Start - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 01-08-2014, 07:06 AM Thread Starter
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Harsh Exhaust Smell - Cold Start

We've had a run of -20 to -40 weather here for the past few weeks.

A few weeks back I noticed that when I climbed into my truck after command-start warm up for 10 minutes, and I could smell strong exhaust.

I figured it was hopefully the wind, or an isolated event.

Over the past few weeks I've used my truck for 3-4 more around town runs and every time I warm it up I get the strong exhaust smell. It's that rich, eye watering, sickening exhaust smell. I also notice a small yellow frozen puddle under the exhaust tips that wasn't there before.

It's bad in the cab, but even walking around outside the truck and the smell is sickening. I actually just started the truck and I could actually smell the exhaust smell faintly, from inside my house! This has never before occurred. Prior to this, a person could hardly tell it was a diesel by the smell of the exhaust.

Once the truck is up to temperature the smell seems to disappear, or at least lessen.

Anybody have any ideas?

Thanks.
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post #2 of 7 Old 01-08-2014, 07:18 AM Thread Starter
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I should add some details:

Truck is 2012 Crew, KR, SRW, 35,000 miles
Completely stock, under warranty.
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post #3 of 7 Old 01-08-2014, 09:07 AM
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Have you tried plugging the block heater in for a couple hours before cold starting it in the morning? I'd say the smell you have is normal for extreme cold like you're having.

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post #4 of 7 Old 01-08-2014, 09:11 AM Thread Starter
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Have you tried plugging the block heater in for a couple hours before cold starting it in the morning? I'd say the smell you have is normal for extreme cold like you're having.
It's been plugged in every day since around November.

The smell just started a few weeks back, this is it's second Saskatchewan winter. Up until now you couldn't smell a thing.
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post #5 of 7 Old 01-08-2014, 09:16 AM
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I see. Well I know that my truck has a pretty potent smell on mornings below 0F and I'm not running the DPF or Urea systems so that should rule out those systems on yours. Good luck.

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post #6 of 7 Old 01-08-2014, 09:26 AM Thread Starter
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I see. Well I know that my truck has a pretty potent smell on mornings below 0F and I'm not running the DPF or Urea systems so that should rule out those systems on yours. Good luck.
Thanks.

It could very well be a non-issue, I really hope it is.

I just know that it went from zero noticeable smell to an overwhelmingly strong smell.
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post #7 of 7 Old 01-10-2014, 12:25 AM
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Is it more of a diesel smell or more of a urea smell? I know I smelled a faint urine smell when it really cold outside. Just curious.


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