I know I know.... it's blasphemous to talk air conditioner....but we had a rainy week and I've had the soft top up for 3 days straight, which may be a record. I feel like me and my Jeep are suffocating.

Anyhoo.. I know that A/C units will drip condensation, especially on humid days, but the JK A/C certainly seems to drip ALOT. Has anyone else noticed this? If I stop with the A/C on I get a good sized puddle, and after it shuts off, I can hear it dripping and sizzling on the exhaust.

Just wanna do a sanity check and see if others have noticed this.

 

the more it drips, the more humitity its removing from the inside, the better it's working....let her drip, it's a good thing, rest easy.

 

Is that actually the humidity that is being removed from the inside? Or is it the humidity from the warm outside air condensing when it comes in contact with the cold refrigerant lines in the engine compartment? The air intake during normal operation is on the outside. How would it remove humidity from the inside air? Is there a drain?

 

It is the condensation on the coolant lines attached to the compressor, there isn't a drain for water removed from ambient air, AFAIK.

 

it depends if you have the a/c on max both button you will get the wat er from inside if your running it with just the a/c light on you get water from out side

 

Right, but where would the condensed water vapor drain when cooling the air on the recirculate mode? I don't think it would drain on the outside unless there was a drain.

 

The drip tube comes from the airbox inside the cabin. So it's removing the humidity from the air that passes through the air box, whether it's outside or inside air it still removes moisture from witin the airbox. The pipes outside usually freeze or develope slight condensation. Mine X drips a lot too, but so has my Mustangs and 4Runner this summer. I'd write it off as a humid summer air mass.

 

yup,
my jk drips more than any of the previous 14 cars i've owned.
I don't know firsthand what that implies.

 

warm moist air is drawn into the evaporator, normaly this is a mix of interior air and fresh air(only interior air on recirclulate), it is forced thru the evaporator, across the lines filled with liquid coolant(r-12/r-134). This cools the air, cool air can not hold as much water vapor as warm air so this liquid falls out of the air in the evaporator and is drained outside under the vehicle by a drain tube, that is your puddle. No drain, or a plugged drain will give you wet feet and a moldy evaporator, its got to drain, and it does.

 

Cool stuff. I know why and how it drips, I just noticed that the JK dripped more than any other vehicle I have owned. Then again, today was an extremely humid day in NY, so it was the worst case scenario.