Chrysler Repair: Dodge Carivan Heater Vent Distribution, dodge carivan, wheel drive cars


Question
Thanks for the referral site. I'm sorry, I mislead you in saying "all electic".  I meant all electric as in power windows.  I can hear the click of the vents when buttons are pressed to select which area air is to flow to. (Floor, defrost, etc.)  So I assumed this is an automatic action.  So, I need help...don't know about cars.:)

Thanks again for responding, will this help?
God's Peace.
Audria

-------------------------
Followup To
Question -
94 all electric van- temp gauge will not move beyond the cold setting.  Blows only cold air.  The rear ventilation works fine cold or hot.  If I close the front vents off, seems to be sending air from outside, in. (like the vent to outside is still open.)  Can you give me a fix operation?

Thanks,
Audria
Answer -
Hello Audria,
By "all electric van- temp gauge" am I correct in assuming that you have is an automatic temperature control heater/a.c. unit? If so, then I am limited in knowledge about these systems. The most recent write-up I have is for the '89 front wheel drive cars that have that system and there were some control modifications made in the intervening 5 years to your van. But both types do have an on-board self diagnostic capability wherein you can ask the control unit to look at its functions and tell you if it recognizes a fault code so you can then focus on that part for repair. The fault codes and a write-up are given at:
http://www.allpar.com/fix/codes-climate.html
So check that out and tell me what code(s) you get and how they are described (my write-up uses different code numbers so I need the text to understand what it is) and perhaps I can tell you how to go about fixing this. Also check for more information on the system at Allpar.
If I misunderstand you, please let me know.
Roland

Answer
Thanks for the explanation. Now I still am a bit unclear. By the temp gauge then do you mean the one on the insturment panel (dash?). If so, then assuming that it isn't the temperature sensor is inaccurate and not sending the correct info to the gauge and that the gauge is also working, then if the engine coolant is truly not getting warm enough to move the needle off of C, then that usually means that the engine thermostat in the cooling system is frozen open so that all the coolant is constantly flowing to the radiator at the fastest rate that the water pump will pump it so that it is cooled too rapidly compared to the heat generated by the burning of the fuel in the engine. You would want to replace the thermostat which is located in the thermostat housing whose location depends upon which engine you have (you didn't mention which engine).
If, on the other hand, your AC/heater has separate controls for the front and rear seats, and the rear seats get plenty of heat, but not the front, then it has to be something related to the door that controls the air flow to the front seat and to what degree that air is directed across the heater core inside the unit. The temperature of the air that comes out of the heater system is not controlled by the same vacuum type of system that works the location of the air outlets. Rather it is a simple mechanical connection by a a cable between the temp slider and the door that directs the air. So if you can get heat to the rear and not to the front, then you will want to remove the bezel that surrounds the heater/ac center console so you can get at the screws that secure the control panel to the console. If you then slide the control unit out, you can see how the slider for the temp control to the front works and perhaps see that the cable is broken or disconnected. It there is a separate temp slider for the rear, compare the two sliders and that will allow you to understand why one works and the other doesn't.
If I still am wide of the mark in understanding you, let me know.
Roland