a/c in 2001 T&C

The dual air conditioning in my 2001 town & country works on the right side
but hot air on the left side. If I turn it to defrost 1/2 is cold and the
other hot. The rear a/c works great. Any help?

 

Take it to the dealer and have it diagnosed

Glenn Beasley
Chrysler Tech

 

Agreed - you'll probably find it is low on R134a. Mine exhibited that
exact symptom. The first time I took it in to be checked they could not
find a leak with either a sniffer or UV light (and dye). Six months
later it had leaked down again and this time they found a leak in the
condensor (a hissing noise in the passenger compartment is a good
clue). That has been replaced and now all is fine - even through
the 100 degree days we've had here recently.

Good luck,

Jeff

 

The evaporator is in the passenger compartment, the condensor is
in front of the radiator.

Ted

 

The dual air conditioning in my 2001 town & country works on the right side

I'm way over my head on this one but...

Is this by any chance one of the systems that have separate temp
settings for the driver and passenger? I have heard of the doors
sticking or mechnaism failing on the GM version of those systems and
cuasing this problem. There is a way to do a diagnostic of the HVAC
system from the control panel on the dash but I don't know how to
start it or interpret the flashing lights.

Steve B.

 

Bzzzzzzztttt.... Wrong answer. 2001 Caravans have a problem with the damper
door. I had one with the problem. This is from NHTSA, and it talks about the
right side having no heat, but the left side screws up too. There's a shaft
that goes into a stepper motor that was too short. If your description is
accurate - hot air on one side, and cold on the other - it's a damper
problem. There's no switching of anything to do with refrigerant when you
adjust the temp between the sides. It's all done with baffles and air flow.
With the key on and the engine off, and the fan on low, try adjusting
temperature on one side at a time. You should here the little motors
running. If one side makes noise, and the other doesn't. that side is stuck.
You said the back works, and that it's cold on one side. That kinda rules
out that it's really really low on gas, so don't go there first.

Make: DODGE
Model: CARAVAN
Year: 2001
Type: ANY
Service Bulletin Number: 2400601
NHTSA Item Number: 620069
Summary Description:
SOME VEHICLE OPERATORS MAY COMPLAIN OF NO HEAT IN ANY MODE, FROM THE
FRONT RIGHT SIDE OF THE VEHICLE. THIS BULLETIN INVOLVES REPLACING THE BLEND
AIR DOOR SHAFT WITH A NEW PART. *TT

 

Thanks - you are correct. I knew when I typed it it did not sound
correct and I didn't feel like tracking down the work order.

Jeff

 

Take it to the dealer and find out why the controller is now working, if i
had to guess, it would be a faulty control assembly

 

if there is a issue with the blend air door it would show up in a fault code
either thru the hvac head or with a scantool

 

If the either of the blend doors stick, there is no indication of any fault
anywhere until you invoke a calibration cycle - it's done with some button
magic at the hvac control head. Even then, the only indication is a
flashing light that the calibration has failed. The OP needs to go get the
problem looked at, and hopefully he'll report back what the problem was.

 

you are right about one thing and thats to have it looked at by soemone who has
a scantool that can access the bcm,fcm and hvac modules so they can get the
codes that are involved with the issue. this is not your mothers van there is
no flashing lites anymore

 

Thanks for all the posts. Problem was leak in coil.