Question about Chrysler Town & Country
If your thermostat has been replaced with the proper one your engine is heating up.
The problem then becomes twofold.
The amount of coolant/antifreeze flowing through the heater core or a problem with the airflow over the core inside the heater plenum assembly.
I would check for coolant flow through the core first.
If the heat feels like it is warmer coming out an outlet with the fan on a low setting rather than a high one your heater core isn't flowing enough.
To verify you can also check the two hoses that go through the firewall to your heater core once the vehicle has been warmed up, feel the temperature difference between the two. They should both be almost hot enough not to hang on to and close to equal temperature. A hand held temperature gun is really handy for doing this.
If one is hotter than the other your heater core has restricted flow and will need to be flushed or replaced.
Next is to check your temperature blend door operation.
Move the control to hot and cool and listen for the door to move and feel for the temperature to change, if it does at all. The fan on low setting is best to listen and feel temperature changes.
If you feel a temperature change or hear the door thump at each end of it's travel it is OK.
If you have more questions on this problem leave it in "add a comment" and I will return your question.
Posted on Dec 12, 2009
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Posted on Jan 02, 2017
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