2004 Dodge Stratus heater only blows cold air? I just put coolant in because it was empty. What else should I do?

Sorry to say but i have had plenty of experience with dodge vehicles and have ran into this problem before.....its your head gasket sucking air...(hence the bubbles in your overflow tank isnt from being hot....its the air escaping from your engine)......Plus the posiblility of your heater core being clogged....

There may not be enough coolant in the system. What happends is the heating core is nothing more than a small radiator inside the car. If the fluid is low the heating core is empty. But once you start driving the water pump works harder and fills it up. Another possible cause is a sticking thermostat. If its stuck open the engine cant retain water to heat it up. Thus blowing cold air. Whith the engine cold remove the radiator cap and check your coolant level. If it is full a replacement thermostat may be needed. HTH and dont forget to rate.

where did you buy your thermostat? if you bought a fail-safe style thermostat it could have been no good before you even put it in. also is your tempeture gauge coming up to operating temp?? if it isnt your thermostat may be stuck in the open position allowing the coolant to circulate freely and not actually warm up. i would also check the lines going into the heater core. if one line is hot and the other line is cold than your heater core is probably in need of a flush or replacement.

Remove both heater hoses from motor. Put your garden hose in one end and tape on securely with the other end pointing in a direction the water flow from it will not hit distributor or other vital electronics. Turn on hose - If water come out of heater core at same rate as you are pumping it in then your heater core is flowing - if not then your core is blocked or plugged. Be mindful - if the core is plugged the water will break the seal of the garden hose and heater hose, spraying everywhere, so turn the water on low to check and be ready to shut off quickly!!

check your cooling level and check for coolant leak, if you don't have enough coolant it won't get hot

You may just be low on coolant. When the car sitting cold open the radiator cap and check the level in the rad. Fill the rad. up and then the overflow tank to the cold line. Check this and get back to us.

first find out where the coolant is going, do a system pressure test

Hi:
Your heating system is dependent on hot coolant to be circulated through your heater core, which a fan blows across, and you get heat. If you only get heat when you are moving, that means that either your engine is low on coolant, or the engine's water pump is not working well. Check your coolant level when your engine is cold.

you need to begin by changing the thermostat. if you dont know how go to an autozone and they will assist you.

if that doesnt solve the problem you need to change the heater/ac blower relay.

A heater blowing cold air can be a few things. have all of these things check for proper operation to find the source of the problem.
1. Coolant level
2. Thermostat
3. Water Pump
4. Heater control valve
5. Make sure that the heater control doors are closing when you switch from hot to cold.
6.Last but not least if the climatic controls are electric it maybe at fault.
Good Luck