1. Home
  2. Autos
  3. Auto Repair

Questions and Answers

Dodge Intrepid Lost HVAC Heat

Q. On my 1993 Dodge Intrepid, I lost heat for no reason. The fan works, I checked the fuses, they are fine. It only blows cold air down on my feet even if I put the setting on Defrost only. I checked the hoses coming into the firewall and they are both hot. The car is not overheating. Could this be the core?

Dodge Intrepid Lost HVAC Heat

Your help is awesome. You fixed my other problem. Dodge Intrepid Dash Light Weirdness

Laurie

A. If there is no heat at all, but the modes change as normal, then the possibilities get narrowed down quite a bit. Since you did not mention if this has Manual Temperature Control or Automatic Temperature Control I'm going to assume it is a manual system.

The most likely possibility is a bad Blend Air Door Actuator. The temperature door actuator is located at the bottom of the heater housing at the center tunnel.

Remove the three screws holding the actuator and turn it so you can see the drive. Upon removal, note the shaft position of the actuator, because the shaft on this motor is keyed. As you change the temperature setting, the drive should move one way or the other. If it does, then the Blend Air Door is stuck or broken. If it doesn't move, then the problem is with the control panel or the wiring in between the control panel and the actuator.

Dodge Intrepid Lost HVAC Heat
Blend Air Door Actuator

Additional Information provided courtesy of ALLDATA

Back to Index
© 2003 Vincent T. Ciulla
About.com Special Features

How to Inspect a Used Car

Stay safe and save time by following these tips before driving a used car. More >

New and Redesigned Cars for 2010

Discover the hottest cars for the 2010 calendar year. More >