Idles dangerously low when heat and defroster on
Hey when my car is warmed up and i am on the road with my heat on or defroster, whenever i come to a stop, my RPMs drop very low to almost the 0 and stays there until i turn of the heat etc. Feels like its gonna stall. Then it goes to normal. It is fine when i am driving, only when i come to a stop it drops?? Any ideas. I tried to tighten my throttle...but does the same. My car idles like a little under 900 in park and 700-750 in drive. Please any help would be apreciated.