Rotten egg smell - Ford Powerstroke Diesel Forum

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post #1 of 27 Old 10-29-2009, 05:44 AM Thread Starter
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Rotten egg smell

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
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post #2 of 27 Old 10-29-2009, 12:12 PM
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May not be an exhust smell, you could have a bad battery they smell like sulfur (rotten eggs) when bad or leaking

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post #3 of 27 Old 10-29-2009, 12:19 PM
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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

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post #4 of 27 Old 10-29-2009, 03:09 PM
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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.

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post #5 of 27 Old 10-29-2009, 03:12 PM
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do you still have the cat on..the egg smell is a tell tail sign of a bad cat

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post #6 of 27 Old 10-29-2009, 03:16 PM
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Originally Posted by 1tonpower View Post
do you still have the cat on..the egg smell is a tell tail sign of a bad cat
Really ?

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Thanks. I'll give er a good wackin in the morning.
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post #7 of 27 Old 10-29-2009, 03:23 PM
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I have the cat on since mine is stock, but mine doesn't smell like rotten eggs. Just not the normal diesel smell

2008 F250 SuperDuty FX4 Crew Cab Short bed Silver Metallic Dark Shadow Grey Job 1
Extang Trifecta Bed Cover
Spray in bed liner
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Second Radiator
Second EGR Valve
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post #8 of 27 Old 10-29-2009, 03:31 PM
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well..ive never smelt a bad cat on a diesel...but thats what they smell like on gas jobs

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post #9 of 27 Old 10-29-2009, 06:28 PM Thread Starter
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Thanks guys. Yeah everything is stock. Cat is still on. Maybe I need to talk to my tech about the cat. Sounds plausible.
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post #10 of 27 Old 10-29-2009, 08:15 PM
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bad cat .................................................. .................................................. .................................................. ...................
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