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Love ( d ) this truck..
2021 Duramax and I’ve got 33k miles and all the sudden I’m experiencing nauseating exhaust fumes in the cab!!
2 dealers now can’t smell anything, and this second one did a comprehensive leak and pressure test and can’t find anything.
It comes and goes, but is Mostly when I’m in slow traffic or idling. Nauseating and making me sick!
We plan to go on a trip in April, but won’t be happening if we can’t get a fix !Can older DEF fluid cause this?
Did I JUST read that GM may be getting ready to buy back some problem Duramaxs!?
I’m all ears .
Thanks in advance.
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