A/C recirculation issue, please tell me if this is by design, or defect - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - WK2 - > Trouble Shooting/Problems/Service

Join Jeep Garage Today
Reply
 
Thread Tools Display Modes
 
  #1  
Old 08-03-2015, 11:19 AM
New Member
 
Join Date: Aug 2015
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Casey Lyde is on a distinguished road
A/C recirculation issue, please tell me if this is by design, or defect

Hello Everyone,

I have a 2014 Grand Cherokee Laredo 4x4 that I am crazy about, and is the 3rd Jeep I have owned. I purchased the Jeep in August of 2013 for my wife. I traded another vehicle off in February 2015, got my wife a new vehicle, and started driving the Grand Cherokee full time. Previously, I only drove it on weekends. This summer has been a lot warmer than last year's, in the Houston Texas area.

Here is the anomaly I am experiencing: I just noticed in early July, about the time it got really hot, that my Air Conditioning recirculation door started closing, even though I had it turned off (and in manual, non-auto mode). When i first turn on the A/C (with recirculate off), the recirc door closes. If I turn the recirc on, and the off again, then the recirc door will open.

Last month, I decided to take it into the dealer to finally get my 5 recall items done. I explained to the service advisor what was going on. I knew it would be difficult to explain, so I showed him. It took a while for him to understand it, and I feared that my description of the issue would get lost in translation when my car went to the Tech. At first, I was told that the tech could not duplicate the problem, so I went back there myself and showed the tech. I also insisted that they perform the software flash update for the Tech Service Bulletin (24-003-14 REV. A,http://www.wk2jeeps.com/tsb/tsb_wk2_2400314a.pdf ), because last winter, I thought that the HVAC was blowing warmer air than outside (when using vent only, temp set on lowest setting, heater core should not be used). They did the software flash for me.

When I picked the car up (without noting current outside temp at the time), the HVAC was performing as it should (recirc door does not close unless you turn on recirc). Shortly after (when stopping at a store on the way home), it starts doing it again.

I took my Jeep back to the dealer, and they took another look. I told them that I suspected that the actuator on the recirculation door was bad. The dealer tells me that they opened a Chrysler Star Case, and that a technician told them that this is normal behavior as designed (without giving any additional info). My dealer also said that they tested another 2014, and that it exhibited the same behavior.

So my question is this: If you have your HVAC in manual (non-auto), a/c on, and recirculation off, is it designed to close the recirc door even when the setting is turned off under certain conditions? Temperature threshold, perhaps? This does not seem normal to me. And I cannot find anything online (or with the dealer, and anyone with Chrysler) that can answer this.

To date, I have not found anyone else experiencing this, and there is no Tech Service bulletin.

Anyone else with a 2014 (and in a hot area) experiencing this? My model is a Laredo, with a UCONNECT 5.0, if that matters.

Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 08-03-2015, 11:20 AM
New Member
 
Join Date: Aug 2015
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Casey Lyde is on a distinguished road
Re: A/C recirculation issue, please tell me if this is by design, or defect

I tend to over-explain and complicate things (it confused the hell out of my service advisor and the Tech, and I suspect Chrysler as well). So, if I confused anyone, here is a summary of the issue I am experiencing:

1. Preconditions:
a. Temp set to lowest setting
b. A/C button on
c. Auto mode off
d. Recircluation setting off

2. If preconditions in step one are not met, set them. Otherwise go to step 4.

3. Turn HVAC off

4. Turn HVAC on.

5. Observe and determine if Recircluation door closes.


For step 5, If you turn the fan to max, go outside in front of windshield and place hand on HVAC air intake (on passenger side) and feel if air is being sucked in. Alternately, you can listen (with fan on max), then turn recircluation on. If it gets noisier, then recirc is functioning according to your setting. If it does not get noisier, turn recirc off again, and then it will get quieter (as the recirc door opens).

Stopping the engine, and restarting is not necessary. You can simply turn the HVAC off and back on to reproduce my issue.
Reply With Quote
  #3  
Old 08-07-2015, 09:25 AM
New Member
 
Join Date: Aug 2015
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Casey Lyde is on a distinguished road
Re: A/C recirculation issue, please tell me if this is by design, or defect

Anyone have any thoughts? If any of the internal temperature sensors are bad, would it throw an error code?

Some of my GM vehicles in the past would auto recirculate in extreme heat, but would open up fairly quickly. It is still warm here, but on some mornings, it is down to 78, and it is still remaining closed.
Reply With Quote
  #4  
Old 08-09-2015, 05:54 PM
Member
My Jeep: 2014 3.6L WK2
 
Join Date: Apr 2015
Location: Cross Roads, PA
Posts: 59
Thanks: 2
Thanked 9 Times in 9 Posts
Rep Power: 661
ytqm is on a distinguished road
Re: A/C recirculation issue, please tell me if this is by design, or defect

Mine always starts in recirc when in Auto, and will always default to recirc even if the light isnt on. I have to hit the recirc button (light illuminates), then his the button again (light goes out) and now I am in fresh air mode. I think its by design, why, I couldnt imagine, other than it would cool the air faster. Also, I find with this vehicle, I have to put the AC on, as it seems the heater core must get some bleed through of hot coolant. Maybe these are bugs in the system.
__________________
2014 GC Overland Black/Black
3.6L
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Air recirculation issue/question Lifeon2whls Trouble Shooting/Problems/Service 0 03-11-2012 03:38 AM
Recirculation Door Problem Me Fix Troubleshooting/Problems 8 11-17-2011 09:05 AM
Possible Factory Defect, WK2 Side Chrome Molding Coming Off! RyanHM Interior/Exterior/Visual 6 09-09-2011 10:48 AM
Interesting defect from factory joebuf1 Grand Cherokee - WK2 - 13 08-12-2011 11:20 PM
P0406 Exhaust Gas Recirculation Sensor A Circuit High rufdod Troubleshooting/Problems Discussion 6 07-23-2010 07:37 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 05:25 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.