Was able to fix the wife’s truck this afternoon. She had a fuel cap light and check engine light on, for several weeks, and was getting 15 mpg…go figure, women.
It was a fuel emissions code P0456, ended up being the hose fell off the charcoal filter up by the fuel tank. Apparently they suck the fumes off the top of the tank and burn them in the engine. So it was just sucking air and making her truck run like chit, go figure. The stealership probably would of raped her for $1k in parts not needed.
And I just found out all of this last night when she was trying to drive my truck, inexperienced, in the rain.