i own a 02 dodge ram 1500 quad cab slt v8 4.7lt. the air was running full blast i went in to the store and when i came out and got in to the truck and turned the air on it gave me nothing. what should i do? and i have already checked the fuses and nothing. please help thanks!

 

might check the hook ups behind the dash. after i put in my new head unit i turned on my ac and it would blow cold, problem was just a loose connection that hadnt been snapped tight. might be as simple as that so take off your dash and see if u can look at the hook ups.

 

Mine did the same thing there is a TSB for that, the wire that goes to the blower motor is too thin. There is a replacement harness for that. There is a connector under the steering well that the blower motor connects to, its blue and white and has about 12-14 wires, take it apart and see if any of the connectors have melted. Thats what is was one mine. you can just open it back up with a flat screwdriver until you get the new harness.