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2014 Grand Cherokee AC is yours cold?

8K views 43 replies 21 participants last post by  Emdoc1 
#1 ·
So now that we are getting into some 90+ degree weather, here is a question for 2014 GC owners. Does your AC feel cold on 90+ degree days? Mine is cool but seems to take a very long time to bring the cabin temp down even a little. I have not got out the thermometer yet to check vent temps but I can tell it is no where near as cold as past vehicles that cooled the cabins off quickly in similar temps. Has anyone had their 2014 AC checked/charged? if so was it low? or is this just the way it is? If so guess it is just something to live with.
 
#3 ·
Yeah agree bob, I was just trying to figure out if maybe us early builds didn't get a full charge put on them at the factory or if this is just how it is. I got out of my friends MDX the other day and wow that thing pumps the cold air and then into mine that was kinda soso cool and im thinking what is wrong here.
 
#4 ·
Hey Silvermax, did you have the "hot cabin" issue that some folks on here had? Just curious if this could be another symptom of that issue, where the a/c just won't get cold enough.

Does anyone who had the "hot cabin" issue and has gotten it fixed with the TSB for the s/w update, have this issue that silvermax is having?
 
#5 ·
Hey Silvermax, did you have the "hot cabin" issue that some folks on here had? Just curious if this could be another symptom of that issue, where the a/c just won't get cold enough.

Does anyone who had the "hot cabin" issue and has gotten it fixed with the TSB for the s/w update, have this issue that silvermax is having?
I have the hot cabin issue but have not been in to get the TSB yet and not sure they will do it as I am out of the date range stated by the TSB but I am going to try. I am not sure but I would guess the week ac is not related. what it feels like to me is an ac system that is undercharged, everything appears to be running correctly just not pumping out very cold air. not sure if it is an issue or just a system that is designed for borderline operation to save money somewhere like bob said.
 
#6 ·
Today was close to 90 on my way home. While driving down the highway, I started to think to myself that I should get the hot cabin TSB done as mine was not cooling well and thought it may be related. I agree it just doesn't pump out cold enough, all the time.
11/22/13 build date.


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#9 · (Edited)
Today was close to 90 on my way home. While driving down the highway, I started to think to myself that I should get the hot cabin TSB done as mine was not cooling well and thought it may be related. I agree it just doesn't pump out cold enough, all the time.
11/22/13 build date.


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ok so much for the thought it was an early build thing lol, march 2013 build here. would be great if it turns out that the hot cabin tsb fixes the weak ac also. not sure that it will but we can hope.
 
#11 ·
We've had 80's and even 90's down here in South Florida and my 2014 GC A/C runs cold. The ventilated seats don't seem as noticeable as in my 2011 though.
 
#13 ·
ok so you got a really recent build Dan march of 2014 and it is good and cold in south Florida that is good to know. wonder if it is just a low charge condition for prior builds? may get that checked at some point when I get through other items lol
 
#14 ·
Hi All,

First-time poster here.:wavey:

Thanks to this forum, I just had the "hot cabin" TSB fix performed, and I am very happy to report that my AC in auto-mode now works as expected. YAY! :thumbsup:
Very cold, very fast at first startup, and settles down once it gets closer to desired temp setting. Previously I had to set for 63F to get 70F in the cabin. I now get the temp in the cabin that I set in auto sync mode. :D
 
#18 ·
before you worry too much about performance... check it in hotter weather I had another 2014 JGC that wasn't cold when it was warm out but when it got HOT it was perfect. If the performance is not satisfactory, have it checked... The Durango I drove last summer didn't seem cold either except on the highway. They brought it in, did a recovery and recharge then it was ice cold.
 
#20 ·
Just to give you all an update on the "Hot Cabin" TSB that was just released. I finally got around to applying the the new flash to mine today. I will tell you this, it is like it has a new HVAC system in it now. My build date is Aug. 2013. Before it was so hot in the Jeep I sometimes wondered if the HVAC was working at all. Had to turn HVAC down to 60* just to get cold air to cool the inside down to around 70*. After I applied the new flash I can set the temp to 72* and it cools the inside right down and holds it with no problems. Best flash I have applied so far to solve the HVAC cooling issues. :)
 
#24 · (Edited)
My 14 went through two summers with the Ac not cooling correctly. Some days set at 73 and 74 degrees it would freeze you out of the Jeep.On other days it just could not keep up with it set below 65. Other days it would for no reason while driving start blowing through the dash and floor vents and stop cooling. Then all of a sudden it start working perfectly. The module was reprogrammed five or six times. Still after a year they could not fix it.I would have the dealer check and see that your outside temp sensor is reading the correct temp. It is connected to the AC. Mine stuck at 68 degrees and it would not let the Auto Temp control cool in 90 Degree weather.
When my dealer was working a trade in on a latter built Summit, it was doing the same thing.
This is evidently a know issue with early JGC.
 
#27 ·
2 summers with bad AC on your 2014?

Pardon me while I throw the BS flag!

I wonder how much GM/Ford pays these guys?



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#26 ·
kinda amazed 25 posts and nobody has shoved a thermometer in their vent yet
under typical conditions with the vehicle travelling at freeway speed and outdoor temps in the 90 to 95 degree range, with the system in manual mode on recirculate and set at coldest temp, with hi fan I would expect something in the mid to low 50s and even into the 40s as the cabin cools off. this is based on years of hvac experience residential and automotive and have always had a thermometer in my vents.
 
#32 ·
kinda amazed 25 posts and nobody has shoved a thermometer in their vent yet
Thermometer in vent is reading 40 - 42 degrees. I bought my Jeep in Oct and I thought I was having a problem with it (not blowing that cold) What I've noticed is when the weather was not that hot out like in the 70's my AC didn't seem to blow as cold. I live in South FL and now that we are starting to get some hot days (low 90's) it will freeze you out. I am having NO issues with the AC. Seems the hotter it is outside the colder it gets?
 
#28 ·
Bought mine March 2013, last summer was fine, so far this year no issues. As far as I know they didn't do any reprogram.


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#30 ·
So how did you get 2 summers in a one year old vehicle?


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#31 ·
Bought it in March.2013. Our weather can be hot in March,April,May. We can have 70-75 degree weather in October, November, December, January and February. So theoretically I only had it one"Summer". To me our Summers start when it starts to get hot. I use the AC for at least 10 out of the 12months. 12 if I stay at the house in Florida. Anyway 13 months and 20840 miles with erratic AC and Heat.
 
#33 · (Edited)
I def have the hot cabin issue, TSB NOT applied yet and mediocre AC perf with 70's temps outside. I am a realtor so I do all the short trip stuff and the person in back seems to have to put the window down often. It's def the radiant sun heating interior above outside so the AC has to work harder but I can't seem to force it to do so. My routine is windows down to vent the built up radiant heat since I know the temp sense will tell the AC "it ain't that hot out" and do medium cooling so then I set manual 60 recirc and it takes forever to cool. And always have vents set to face/up front and back. My '02 if you did that it blew frost out the vents within a minute.

My build is 11/6/13. I am hopeful the TSB improves AC moderate temp performance.
 
#39 ·
Anyone have problems with "stinky" AC? Normally when you go from non-AC to turning on the AC, or vice versa.

Just took it to the dealership last week, they cleaned out my cabin filter (which I replaced myself just a month or 2 ago) and they performed a sani-clean (or something) spray into the AC system... but it STILL stinks.

I'm at 25k miles, on a 2012.
 
#40 ·
#43 ·
I also noticed my AC not getting cold enough, even on days when the temps are in the low to mid-80's. Mine is in the shop waiting for the replacement axle for the boot clamp failure issue, and they did say there was an HVAC software update they were also going to flash it with so I'll find out when I pick it up if the A/C is any cooler... stay tuned!

:cool:
 
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