Sulfur Smell

[FriedDumpling]

Started my truck this morning in the garage, got a sulfur smell (rotten egg). It quickly went away. I know that many would quickly suggest the catalytic converter, but didn’t receive any vehicle message and everything seems to be in order. Would’ve expected a message if were catalytic related.

If it were the catalytic converter, would the smell me constant and other tell tale things I should be looking for?

Maybe something got trapped in the events when the vents closed at last shutdown?

Thanks!


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[AFMoulton]

That smell could be indicative of an electrical burning. Might have blown a fuse before it caught fire.


2018 Ram 2500 6.4L 4x4
Amsoil SS 0W-40

 

[FriedDumpling]

That smell could be indicative of an electrical burning. Might have blown a fuse before it caught fire.


2018 Ram 2500 6.4L 4x4
Amsoil SS 0W-40

Wouldn’t I get an indication of some sort on my dash from a blown fuse?


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[Hemi395]

Catalytic coverters will smell like that temporarily if its been driven hard recently. For instance if you pulled a trailer up a long hill and then pulled over right after. No CEL or codes?

 

[16Ram4x4]

There would absolutely be no indication of a blown fuse on the dash.
The only indication of a blown fuse is that something electrical would not function / operate at all when switched on.
Or you might have a burnt fuselage link.
Open up the fuse box under the hood and look for a blown fuse

 

[indept]

Another source of that smell could be the battery If its overcharging. Batteries us sulfuric acid.

 

[FriedDumpling]

Catalytic coverters will smell like that temporarily if its been driven hard recently. For instance if you pulled a trailer up a long hill and then pulled over right after. No CEL or codes?

Nope no indication whatsoever. No hard driving. Wonder if the close confines of being in a garage, or smell trapped in the vents was just the issue.


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[FriedDumpling]

Also assuming if it was the cat, there’d be a check engine light too - right?


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[AFMoulton]

There is a chance you may not see a CEL for any issue you might have. Plenty of times if had something fail with zero indication.


2018 Ram 2500 6.4L 4x4
Amsoil SS 0W-40

 

[2012RAM1500RT]

Just keep the battery in mind. If it's 5 year's old or older especially.

 

[Hemi395]

Also assuming if it was the cat, there’d be a check engine light too - right?


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Not always, it will only pop a CEL for a cat if the PCM detects the efficiency is below a specific threshold. It can stink like that and still work well enough not to pop the CEL...

 

[indept]

You can always take it to the dealer. Why pass up a chance for them to tell you it's working as designed.....