alright i have another problem i was driving down the road friday and look at my vents and the was smoke coming out. smoke like someone as smoking a cigerette not like its on fire and i turn on the air and it just blew everywhere. turned on my ac and it went away. smells like engine smell not exhaust . does anyone have a clue what this is and how to fix it.

 

Could be garbage on your resistor. When I took mine out to repair the thing was covered in fir needles. It gets pretty hot if you run the fan all the time.