Funny Smell ??

[FCAEMPLOYEE]

Just sold my 5.9 Mega Cab and bought this 2015 Laramie Limited EcoDiesel. I noticed a nasty smell when it was running in the garage and i turned it off. and it was not Diesel exhaust. I looked under the truck and and there was a clearish looking liquid dripping off the muffler. Do you think this was the def system activating and running out instead of burning because i shut it off ??, i didn't see the funny swoosh symbol on the dash ??

 

[hodge-xj]

Just sold my 5.9 Mega Cab and bought this 2015 Laramie Limited EcoDiesel. I noticed a nasty smell when it was running in the garage and i turned it off. and it was not Diesel exhaust. I looked under the truck and and there was a clearish looking liquid dripping off the muffler. Do you think this was the def system activating and running out instead of burning because i shut it off ??, i didn't see the funny swoosh symbol on the dash ??

That's the DEF you smell. Depending on the brand DEF I use some smell like cat ****, other just smell like a ******, it all depends. It a nasty tho. That fluid is condensation so no need to worry. DEF is like 70% water anyway.

Not sure if you're familiar with the ecodiesel so I don't wanna speak to you as such, but it's surely a different animal than the diesels I was used to. I came from a 5.9 Cummins and this truck has quite a learning curve

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[LouM]

The stench from this exhausts at times could gag a maggot, it is terrible.
This is the first vehicle that I can't let idle much of the time if I back into a shed to unload something.

 

[hodge-xj]

I noticed when I use generic DEF it's worse than if I use Blue def. Its still there, but not as ammonia-y if that makes sense. I find myself driving my beater jeep a lot more now. Especially for short trips.

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[crash68]

Other than a rarely occasional smell of what could be described as a burning wax smell from turning the truck off shortly after or during a regen, I don't have any unusual smells from mine. If your getting smells from the exhaust or water/DEF is pouring out there is most likely a problem.

DEF is dose injected while the truck is running, basically the more fuel your burning the more is injected. DEF has nothing to do with a regen cycle which happens upstream to SCR where the DEF is injected.
For DEF to meet the ISO 22241-1 compliance, it's all the same. Usually the best place to buy it is from the pumps for semi trucks.

 

[hodge-xj]

Other than a rarely occasional smell of what could be described as a burning wax smell from turning the truck off shortly after or during a regen, I don't have any unusual smells from mine. If your getting smells from the exhaust or water/DEF is pouring out there is most likely a problem.

DEF is dose injected while the truck is running, basically the more fuel your burning the more is injected. DEF has nothing to do with a regen cycle which happens upstream to SCR where the DEF is injected.
For DEF to meet the ISO 22241-1 compliance, it's all the same. Usually the best place to buy it is from the pumps for semi trucks.

When idling this thing smells like cat pee. Always has. Especially when cold. I noticed it more as of recent since I'm laid off and haven't been running the highway much and do a bit shorter trips. I'm serious when I say that the blue def and the autozone **** smells different. Both stink, but they have different odors, which is weird considering I know they are all supposed to be the same. Doesn't bother me, I just stay up wind.

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[crash68]

I'm serious when I say that the blue def and the autozone **** smells different.

Learn something new about DEF everyday... which one has the better aroma? LOL! There is a couple of smaller semi truck fuel stations in my area that I fill up DEF at.

 

[hodge-xj]

Learn something new about DEF everyday... which one has the better aroma? LOL! There is a couple of smaller semi truck fuel stations in my area that I fill up DEF at.

Blue DEF burns the nostrils less. The cheap stuff smells like a hobo pissed in the exhaust after a night of vodka pints and 40 oz malts. Lol. I haven't used truck stop stuff yet. We have truck stops all over out here, but being on a main east coast thoroughfare, it's always so busy you can't pull into the parking lots let alone get to the pump.

I'm sure my Hot Tune plays into my smell a bit as well, but I'm not exactly keen on huffing tail pipes. My old 5.9 would haze raw fuel when cold that would choke a flock of seagulls so i guess pick your poison.

I take my beater jeep for short trips on cold days anyways, heats up way faster!

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[FCAEMPLOYEE]

Thanks guys

 

[cop4hire]

The only bad smell from my truck is when it is in regen and we park it in our garage. It smells like burning rubber to me.

 

[JEFF MANN]

DEF is a federally controlled substance, 67.5% deionized water and 32.5 % urea, I don't think brand will matter on the smell, UNLESS it is bad as it does have a limited shelf life. I personally use the walmart brand because it's the cheapest I've found without buying bulk from a truck stop. I purchased a refractometer so I can test it before I put it in.

 

[bill-e]

In 5+ years I can only recall a couple of times that I've smelled the DEF. Most of the time my truck is virtually odorless with the exception of stopping in the middle of a regen and in the winter where it often smells like coolant.

 

[Raymond1050]

Not to be funny, but why not fix the leak? Also check to see that your EGR has been replaced under recall.