Although my car is not an Eclipse, I experienced the same issue. A mechanic determined that my radiator was partially blocked and recommended replacement. My heater now blows heat whether I'm stopped at a light or moving.
What do you mean by "has no heat"? No air blowing out, blowing out cold air when heater is on, blowing nothing at all? Heater not turning on? What specifically is happening?
No one knows if:The heater is NOT blowing - or blowing on high speed only, or... The heater IS blowing, but the air is NOT hotEither way, the "Related Questions" below will get you started
Not exactly sure with the eclipse most vehicles are inline with the heater hose, and on or near the firewall
faulty control valve on heater or air in the lines
If your heater is a heat pump , then yes.
Low coolant and a clogged heater core are possibilities.
If you feel no air blowing at all (when you are not moving) then your fan is not blowing. If it is blowing air, and it is cold, when the heater is on, then most probably your heater core is leaking, or is clogged. These are easily replaceable and go bad all the time in older cars.
You may need to replace your Thermostat or your Heater Core.
Could be a bad thermostat or heater core
Motor hasseized.
One reason your home electric heater is blowing cold air is the heating elements are burned out. A bad thermostat may also be the problem.
did you check the heater core because my truck did that and that was what was wrong