Cold Weather Starts And Burning Smell in Cabin

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mhExped

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We bought our 2018 Limited brand new last winter. Noticed that when the weather was really cold and we used the remote start for a cold start (first thing in the morning, for example), the cabin would sometimes fill with an electric/oil type burning smell. The odor was so strong and noxious, we would need to air the cabin out a bit before driving. Ultimately, the smell would disappate once the car had been driven.

We assumed it was something related to the car being new and would utlimately work itself out. However, that's not the case as it's back this winter.

Doesn't happen often...only occasionally when the weather is really cold and doing a cold start using remote start (that said, maybe those are just the times we're more likely to make use of the remote start - can't say I've yet gone out on super-cold mornings and started the car from inside the cabin).

Yesterday, I smelled a similar odor outside the car after having driven about 20-30 minutes at highway speeds. Didn't notice the smell inside the cabin at all, but definitely present outside the car. Seemed to be coming mostly from around the front right grill area.

Anyone else notice this sort of smell? Any thoughts?
 

scottdm

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No burning smells here. Have you looked around to see if any fluids are leaking and possibly burning on the exhaust? You may notice it less when driving than when it sits in one spot and warms up.
 

apex96

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Okay, I’ll bring this back from the dead… I have 2018 purchased as a CPO July of last year. When it’s cold out, below 40 degrees Fahrenheit, I’ll get a strong burning rubber/plastic smell while it’s idling after a remote start. I had a dealership look at it and they diagnosed it as a blown AC compressor (internally failed). Had compressor replaced. Immediately the next day or so, I’ve got the smell again… I can’t keep chasing this issue around… it’s an acrid smell that fills the cabin as well and is very noticeable outside the vehicle. I’m worried something is going to fully ignite and I’m going to be left with a burning vehicle right next to my house…

Was anyone able to figure out what may have been causing the smell?
 
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NukeLife

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This has to be something touching the exhaust, or a heat shield, that’s not supposed to be.
There are some fiber board “shields” up under the engine and transmission. They look like they want to grow up to be skid plates. Try removing those so you can get a better look at your exhaust run. (And maybe make sure they, themselves aren’t lay against a hot exhaust)
 

apex96

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That’s my assumption too, that something is laying on the exhaust. Funny thing is it only produces this smell during a cold soaked remote start when it’s very cold out. I can start it at any point during the day after it’s been ran and I can’t reproduce the issue… I’m scratching my head on this one. I’ll be digging into some more tomorrow morning myself but I’ve not personally seen anything from above, that may be a possible culprit, yet.
 

keny01998

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I have the same issue for months especially in cold weather and I brought it to my local Ford dealer. Of course they could not duplicate the issue.
 

apex96

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I think I may have an idea as to where the burning smell is emanating from and it’s going to sound a little silly. I remote started and warmed up the vehicle this morning. Curiously I noticed a lot of steam coming off the rear wiper blade/rear window. I smell the same smell around the back glass as well… checked the front, there was a little steam rising near the front wipers… I realized there are in glass heat strips right where my wipers are sitting. Also the cabin intake is passenger side upper firewall… I’m starting to put two and two together… the burning rubber smell I believe is from heating up the wiper blades…

Now for my next question… how hot are these in glass strips supposed to get!? I know they’re supposed to melt ice but are they supposed to vaporize water too! Seems like they’re getting excessively hot…

I’d love to have someone else check there’s out too and see if the glass becomes too hot to touch. I’ll shoot my front and rear glass with a heat gun this weekend, when it’s supposed to drop into the teens again…
 

maxlim2022

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.... I’ll shoot my front and rear glass with a heat gun this weekend, when it’s supposed to drop into the teens again…
Please just watch that there is not a sudden and marked rise in temp locally with the heat gun, which may jeopardize the integrity of your windscreen
 
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