Originally posted by jspegg:
Dont forget to check the Thermostat if it sticks open your car would show a very low temp.
I had this symptom in my crappy old Mazda 626... I finally took a look at the thermostat and discovered that
there wasn't one. Somebody had taken it out and put it back together with no replacement!
Once I put one in, the defroster worked much better.
