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is the smell just after youve been running it hard? Does it do it everytime you drive?? more info might help...ive never smelt any gases really except my farts!! Is the sulfur smell strong, or just noticable?
kinda a bump here...does anyone know? ive never smelt anything in the cab..seems really odd, could it possible be an exhaust leak of some sort that is getting up into the cab?
An exhaust leak can definately stink up the cab if it's in the right (or wrong) place.
I had a funky odor last year for a few days, turned out the nut to my boost gauge had backed off and I was getting "engine air" smell in the cab. At least I guess that's what it was, I tightened it up and the smell has never returned.
I know their is a cabin filter that can be changed, it is part of the higher milage service that Ford reccomends. I think the wiper cowl piece has to be removed , and the filter is under.
Could be that your filter needs to be replaced....
but if he is getting that much fumes into the cab might there be something else to look for liike an exhaust leak? i dont know where would a sulfur like smell come from