Switching problem from heat to air
My heater and air conditioner both work just fine,
but I can't get it to switch from one to the other
when I want it to. I had to use the heater a few
days ago because my window kept fogging up.
Now, I can't get it to switch back to air.
Sometimes, if I turn the car off then back on, it
will switch, but I want to switch when I want to
switch it, not when the car "feels" like it. What do
I need to buy to fix this problem?