Hi All,
I really need some help before the winter. I have a 99 Dodge Grand Caravan LE, 3.8L. I do not have any warm air (dual heat) blowing in the vehicle.
1.Coolant level is good
2.Thermostat is regulating temp (not overheating, etc.)
3.Blower motor is good
4.I flushed the heater core (NOT CLOGGED)
5.When I elect different vent options/blend door (defrost, feet, etc.) I can hear the electric motor engaging

I am stuck. Is there somewhere else to check? Thank you

 

Both heater hoses going into the firewall are hot correct?

You'll have to access the mode door actuator and see if it is working. You'll then have to verify the door attached to the actuator is opening and closing. This diagram is looking at the drivers end of the HVAC unit under the dash. The mode door actuator is the upper most actuator.http://ww2.justanswer.com/uploads/do...blend_door.gif

Other than that you could try a HVAC calibration procedure. Look through this thread and you'll find it: https://dodgeforum.com/forum/dodge-c...formation.html If you do the cooldown test make sure the A/C is working otherwise you'll have flashing lights till it's fixed.

 

Do I need to remove anything under the dash to access the mode door actuator other than panels? Thanks