Air Conditioning problem 2007 Pontiac G6 4 cyl All Wheel Drive Automatic 33000 miles hello. i've had my g6 for seven months. i bought it used. when summer got here i started to notice a bad smell like old water that was musty. the dealer first added an agent that was supposed to had gotten rid of the smell but it didn't so next they replaced the evaporator core. the smell still remains. And them after tht just so happen one evening while sitting outside while my keys where inside the house the air jus started blowin on the car. i paniced! the dealer said it would have to be doin something