Unveiled at the 2000 North American International Auto Show on January 10, 2000, the redesigned 2001 Dodge Caravan and 2001 Chrysler Town & Country were released for sale in August 2000.

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fan works but no heat comes into cabin. Troubleshooting ideas?

Fan comes on, but no heat comes into cabin. Troubleshooting ideas?

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Possibly a bad thermostat, a clogged heater core, or a faulty valve.

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Have you tried replacing the cabin filter. If it has been a long since you have done this, maybe it is very dirty and clogged. Just a thought.

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you may have a bad servo valve that's the valve that opens and closes the heater door from cold to hot. are you getting any air in the vents? if so and it's cold this should be your problem. you can got to u-tube and see a video on how to fix this just type in the search your van and year and it should come up

Hope this helps

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By keith, part 1: (too much, so I have to make two posts) Make sure you always check your coolant level. And don't just leave it to your reservoir. That' might not show the problem, if for example, you have another issue causing the coolant to fill into the reservoir, such as a head gasket that is going. And you would want to know that, because the sooner the better in terms of fixing it easy with a liquid sealer, etc. Plus, less damage to your engine. Okay, so, lets say that is happening or that you have a leak some place and lost all of your coolant. Not only would you not have heat in your car. But your cars engine wouldn't have coolant to cool the temperature and if you have a faulty temp gauge on instrument panel, then you may end up being able to run like that for periods of time doing even more damage.

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So, number one rule, don't trust, check and verify that you have correct levels.. And make sure your radiator cap is on tight. and if you need a new cap, get one. These systems are under pressure and you cannot expect the coolant to travel efficiently around the engine and hvac system (keep in mind in van, those pipes are even longer and go back to the end of the van, like in a bus, other cars don't have that) if you are not producing enough pressure in some cases. Yes, a radiator cap can cause many different problems and symptoms that may point to other problems that you really don't have. So, get a good handle on all of that, and not only might you get your heat back, but you also may save your care from catastrophic damage. Good luck!

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John Blaine, check for a few more things like :

Make sure the blower works all the time,

Check to make sure that the cooling system is full,

Check to make sure the engine heats up to operating temperature,

and make sure that all the modes on your heater operate.

If all those are satisfactory, it is posible that you have a blend door actuator problem. First try to do the calibration on the heater system. here is how "

A/C Heater Control Calibration

The A/C-heater control module must be recalibrated each time an actuator motor or the A/C-heater control is replaced. If the vehicle is so equipped, the calibration procedure also includes rear HVAC positions for each actuator motor.

Turn the ignition switch to the On position.

If equipped with the manual temperature control (MTC) system, press and hold the Rear Wipe/ Wash and Recirculation buttons for at least five seconds . If equipped with the automatic temperature control (ATC) system, simultaneously press and hold the Power and Recirculation buttons on the A/Cheater control for at least five seconds . The MTC A/C-heater control Rear Wipe/Wash button light emitting diode (LED) and Recirculation button LED, or the ATC A/C-heater control Delay and Recirculation graphics will begin to flash when the calibration procedure has begun.

The calibration procedure should take less than two minutes to complete for the manual A/C-heater control, and less than twenty seconds for the ATC A/C-heater control. When the LED's or graphics stop flashing, the calibration procedure is complete.

If the LEDs or graphics continue to flash beyond the two minute (manual) or twenty second (ATC) calibration time, it indicates that the A/Cheater control has detected a failure and a Diagnostic Trouble Code (DTC) has been set. The LED's or graphics will continue to flash even after the ignition switch is cycled Off and On, until a successful calibration is completed or until the vehicle has been driven about 8 miles."

Here is the information from a bulletin that may apply to you as well:"

NUMBER: 24-006-01

GROUP: Heating & A/C

DATE: May 4, 2001

SUBJECT:

No Heat on Front Right Side

OVERVIEW:

This bulletin involves replacing the blend air door shaft with a new part.

MODELS:2001 (RS) Caravan/Town & Country/Voyager 2001 (RG) Chrysler Voyager (International Markets)

NOTE : THIS BULLETIN APPLIES TO LEFT HAND DRIVE (LHD) VEHICLES WITH ZONE CONTROL OR AUTOMATIC TEMPERATURE CONTROL (ATC) HVAC SYSTEMS.

SYMPTOM/CONDITION:

The vehicle operator may complain of no heat in any mode, from the front right side of the vehicle.

DIAGNOSIS:

If the above condition is verified, perform the Repair Procedure.

1. Disconnect and isolate the negative battery cable.

2. Remove the silencer pad from beneath the driver side end of the instrument panel.

3. Remove the driver's side knee bolster.

4. Remove the three screws that secure the heater core shield to the left end of the HVAC distribution housing (Fig. 1).

5. Pull the heater core shield rearward far enough to disengage the two location tabs that position the front of the shield to the receptacles in the two lower finger formations of the heater/air conditioner housing near the dash.

6. Remove the heater core shield from the distribution housing.

7. Remove the two screws that secure the passenger blend door actuator to the distribution housing (Fig. 2).

NOTE : MARK LOCATION OF PLASTIC EXTERNAL STOP POSITION ON THE BLEND AIR DOOR SHAFT FOR REINSTALLATION.

8. Remove the metal blend air door shaft and plastic external stop attached to the shaft.

9. Install the new blend door shaft through the blend air door and into the housing.

10. Reinsert the plastic external stop to the blend air door shaft in the same position as it was removed. Rotate the blend air door shaft by hand to ensure the plastic door stop stops rotation of the shaft between the stop bumpers in the housing.

11. Position the blend air door actuator onto the distribution housing. It necessary, rotate the actuator slightly to align the splines on the actuator output shaft with those in the blend air door linkage.

12. Install and tighten the two screws that secure the blend door actuator to the distribution housing . Tighten screws to 2 Nm (17 in. lbs.).

13. Position the heater core shield onto the distribution housing. Be certain that the two location tabs on the front of the shield are engaged in the receptacles in the two lower finger formations of the evaporator housing near the dash panel.

14. Install and tighten the three heater core shield screws and tighten to 2 Nm (17 in. lbs.).

15. Install knee bolster.

16. Install silencer pad.

17. Reconnect battery negative cable.

18. Perform the heater-NC control calibration procedure:

a. Turn the ignition switch to the ON position.

b. Simultaneously depress and hold the Power and Recirculation buttons on the heater-A/C control for at least five seconds. The manual heater-A/C control Delay Light Emitting Diode (LED) and Recirculation LED, or the Automatic Temperature Control (ATC) heater-A/C control Delay and Recirculation graphics will begin to flash when the calibration procedure has begun.

c. The calibration procedure should take less than three minutes to complete for the manual system, and less than twenty seconds for the ATC system. When the LED's or graphics stop flashing, the calibration procedure is complete.

d. If the LED's or graphics continue to flash beyond the time stated above, it indicates that the heater-A/C control system has detected a failure and a Diagnostic Trouble Code (DTC) has been set. Use the DRBIII(R) scan tool and the appropriate diagnostic." Hope this helps, good luck.

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Just tried this on moms 2002 caravan 3.3 / auto and after holding the power and recirc. buttons the recirc. button continued to flash after the 2 minutes, will this fix still apply to this one button being lit ?

Thanks.

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this will not help....your blend door is broken.....you will need a new heater box

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1/8/2016 Tried the calibration on a 2005 DGC. Worked perfectly, letting me know that everything is working well. All I needed was more coolant fluid. I will watch for a leak under the car. If there is a leak, what would be the next step? (Could I use the substance that helps plug a small radiator leak?) Thanks Ruth

rmr5647@gmail.com

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This morning my 2007 Grand Caravan began blowing ONLY hot air. It didn't matter where the temp control was set, the air was HOT. I was thinking actuator door and huge expense but I followed the instructions for the calibration and it fixed the problem! The controls work perfectly again. No expense and it took 2 minutes. Thanks!

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Hey I calibrated the way as said to do on my 2001 town and country and the ac button kept blinking.....what does that mean?.... I have no heat at all

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on my 2001 Chrysler Town and Country LXi, it ended up being the digital display temperature control in the center console(I may have caused a short when I replaced the fan blower),I purchased a used one for 60 bucks at a wrecking yard,just remember you need to reset the climate control hatch which is the recirculating image in the digital display, to do that you need to have the ignition on then press the power button and the recirculating button held down at the same time for about 5 seconds then you will see it start blinking then you let go of the buttons and it will continue blinking for about 30 seconds then it recognizes the little hatch so it opens and closes properly this happens every time you disconnect the small wires at the bottom of the fan blower motor below the passenger side just behind the glove box, then hopefully its starts working for you, it's not very difficult all you need is a Phillips head screwdriver and one of those 6 edge star drivers, good luck, PS, for the dial temperature control it is done a different way if you google it you should find the answer sorry I'm not sure how it works but it does have a reset system also

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Per Chrysler it is a software problem in the 2012 Dodge Grand Caravan they know about it but have no real fix yet ? I was also advised check in every month to see if the got a fix for it ?

I was advised yesterday 10/29/13 to turn the heat control all the way up then turn it all way cold then to where you want the heat settings at.

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If you replace the blend door and it still doesn't work unhook the battery and touch the positive and negative terminals together for about a min. It clears out the computer. It should work then. If not you might want to look into replacing the A/C headunit.

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mine is a 2011 chrysler 200 and replaced both actuator switches now need to recalibrate it as most of my air is coming out of the defrost on top.does anyone know how you do this on this model.

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Calibration worked perfectly in my 2007 Dodge Grand Caravan. Heat stopped pumping a few days ago but started working again after about 5 minutes.

Thanks!

Dodge Driver in Michigan

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John Blaine will be eternally grateful.
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