Edmunds Answers

Voted Best Answer

  • avatar karjunkie 10/28/08 12:51 pm PST

    If the blower motor and works and the vents blow air, don't remove the dash or disassemble the cabin heater duct assembly just yet. First check to make sure your coolant level is up to the top and circulating freely. Then check the vacuum hoses under the hood that go thru the firewall to the heater controls to make sure there is no tears or cracks in them. Next check the heater valve in the hose that leads to the heater core, which is also under the hood on the passenger side. If all that is OK, the next least expensive and easy step is to do a chemical flush and drain of the old coolant and refill with new coolant with the heater on full hot. If that still does not fix the problem, you need to flush the heater core with a garden hose connected to the heater core hoses under the hood. Only after these easier steps should you open the heater control panel inside the car and check the controls.

Answers

  • karjunkie 10/28/08 12:51 pm PST

    If the blower motor and works and the vents blow air, don't remove the dash or disassemble the cabin heater duct assembly just yet. First check to make sure your coolant level is up to the top and circulating freely. Then check the vacuum hoses under the hood that go thru the firewall to the heater controls to make sure there is no tears or cracks in them. Next check the heater valve in the hose that leads to the heater core, which is also under the hood on the passenger side. If all that is OK, the next least expensive and easy step is to do a chemical flush and drain of the old coolant and refill with new coolant with the heater on full hot. If that still does not fix the problem, you need to flush the heater core with a garden hose connected to the heater core hoses under the hood. Only after these easier steps should you open the heater control panel inside the car and check the controls.

  • fatkilla 11/01/11 3:19 am PST

    it is the blend door actuator located on the driver side under the panels in the interior its malfunctioned i took mine completely out until i can find another one its the door that controls ac and heat too cabin i flopped mine open manually now i have heat which i need more than ac ..later i will buy actuator i went too my local chrysler dealer and got a print out of how too install blend door actuator and when i found it it wasnt working now i have heat and am happy for now until i can replace it,,,u dont have too take whole dashboard off

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