what could this be???
mine does this to from my open dump wastegate when going fast some air will squeek some exhaust will leak into the cab through the vents even worse say your running the ac or windows are down even with a dump tube it still makes its way in just not as bad
could be some exhaust leaks.. but sometimes thats what you get for not having a cat converter. if you have an open dump, fuel smell is common depends on the open dump location








