smelly catalytic converter?

Some diesels have a catalyst in the muffler and not seperate until about 2007 when the restrictions changed.

I wonder if that may be the case, seems very odd that it doesn't have a cat but I don't know much about diesels.

Maybe the voltage regulator is stuck check your charging voltage , engine running. No accessories on . Should show no more than 14.7- 14.8 volts . Any higher and you have an overcharging issue. Be careful . An overcharging battery is giving off a buttload of hydrogen , any sparks could ignite it and result in a battery explosion. Hose off the battery with a gallon of water and fan the area surrounding it to dissipate any dangerous gasses. Looks and sounds silly , but believe me you don't want that to happen.

I'll check but my gauges all read fine as I recall.

How many tanks of diesel has had this smell coming from them. Maybe a bad blend?
I don't know about up there but we have summer blend diesel and winter blend diesel. I can tell a difference in smell in my tractor and my rollback.

In theory just the one tank although my wife though she could smell it when I was filling up. We drove up to the cabin which is 100 miles, I didn't notice anything until we got there and by then it was brutal when we opened the doors. On the way back it wasn't too bad until we were about 3/4 of the way home, at that point stopping at red lights had the stench flooding in bad.

New DONT always mean good.

This is true