The heater in my car only works once you're in drive and moving. If you stop at
all it starts blowing cold air. I start it in the mornings to warm it up, and its
freezing cold still when I get in. When I am moving and it warms up a little, it is
just that, very little heat. The temp gauge stays at 1/2 at all times. Is this a
heater core issue?
ADD ANTIFREEZE. YOUR COOLANT LEVEL HAS FELL BELOW THE HEATER CORE.