DEF drip out of exhaust

[ramfan]

I have changed Oil & Filter, also changed Fuel Filter on Engine, cycled the fuel pump 6 times, fired up and everything seemed fine. Now there's a DEF drip, wet inside the Exhaust tip, smells like DEF. Anyone have this happen????

Thank you in advance for any information on this.

 

[Bob4x4]

If it was def it would crystalize when exposed to air

 

[ramfan]

The truck was driven 10 miles before oil and filter changes.15000 miles total. 1 cup or so of fluid dripped out and blew some on the pavement out of the exhaust end. engine was warm for the oil change. There is a thin white stain on the exhaust and pavement... EGR?????? Antifreeze???? DEF????? Crystalized like hard water stains? I have that. Getting ready for a trip, guess I don't want to end up camped out at a strange dealer... Thank again

 

[Newsa]

Urea doesn't have much smell. See here under "properties"

http://creationwiki.org/Urea

 

[BigPapa]

Not to say you don't have a problem, but water is the natural byproduct of the DEF system. I see water dripping from tailpipes all the time on our buses. Here's a quote from an article on it:

Exhaust fluid is converted into ammonia, which reacts with the remaining NOx in the SCR catalyst to produce harmless nitrogen and water.

 

[Newsa]

Possible exhaust system leak or bad SCR catalyst? If so, should throw a CEL/MIL code.

 

[OggyOggy]

While changing my differential cover out a few days ago I started the truck to see if the temp sensor was working. I saw a very odd drip come from exactly the same location as your photo. It looked long and stringy as it dripped but when I did the touch and smell test it seemed like water. My 2012 doesn't use DEF. I assume is was condensation.