sounds like the head gasket ...same thing just happened in my 97 cavalier
faulty control valve on heater or air in the lines
most likely thermostat stuck less than $ 15 part
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?
Probably a bad thermostat.
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.
Low coolant and a clogged heater core are possibilities.
Maybe its broken. Or maybe you pressed the AIR CONDITIONING
You may need to replace your Thermostat or your Heater Core.
because u pooped in it
Most likely your pilot light is out
did you check the heater core because my truck did that and that was what was wrong
If you are saying the heater is blowing out cold air you need to change the heater core which is located inside the dash