Rotten egg smell

[pvasilje]

My 2008 Powerstroke seems to run great but recently I have noticed a distinct rotten egg smell in the exhaust. This seems to be a change since I never noticed it before or at least not as obvious. There doesn't seem to be any other indication of problems that I can see. I don't have a code reader but no error messages or check engine lights and no difference in how the engine sounds or runs. My concern is that this change in smell might indicate a problem with fuel mixture or something. Does this sound familiar to anyone?

Thanks.

Pete

[palady6.4]

May not be an exhust smell, you could have a bad battery they smell like sulfur (rotten eggs) when bad or leaking

[southern7.3]

Sometimes my buddies 08 smells like that to. Heck I haven't even smelt a "diesel" smell out of none of these new stock trucks. Dunno what it is. I just kinda figured it was the ulsd in that new motor. Dunno though.

I have another friend with a duracrap and it always smell sulfury

My 99 smells like diesel, wonderful, rich diesel

[Shinny]

Mine has a different smell (other than diesel). I thought it was something in the ULSD. Maybe one of the things that makes it foam so much.

[1tonpower]

do you still have the cat on..the egg smell is a tell tail sign of a bad cat

[Ryan Rønning]

Originally Posted by 1tonpower

do you still have the cat on..the egg smell is a tell tail sign of a bad cat

Really ?

[Shinny]

I have the cat on since mine is stock, but mine doesn't smell like rotten eggs. Just not the normal diesel smell

[1tonpower]

well..ive never smelt a bad cat on a diesel...but thats what they smell like on gas jobs

[pvasilje]

Thanks guys. Yeah everything is stock. Cat is still on. Maybe I need to talk to my tech about the cat. Sounds plausible.

[diesel daddy]

bad cat .................................................. .................................................. .................................................. ...................