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Old 07-07-2014, 05:43 PM   #1
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Superchips programmer for cooling fan in '14

Long story, and its been covered here ad nauseam, but my driving needs make my Jeep get a little hotter than I like. Not overheating, but when working HARD it will get a little over the 1/2 mark before the cooling fan finally does its work.

(Before someone says something is wrong, it's not. It's been totally gone through by two different dealers and STAR cases opened. I just work it hard climbing hills and what I see is normal given the conditions).

After a little research, I found out why. In the 2014's, the cooling fan kicks on at low speed at about 226 degrees and doesn't reach full on high speed until high 230's. I don't like that. So I'd like to drop the temps at which the fan kicks on.

I know I can do that with a Superchips. I have NO interest in messing with any other setting other than the fan engage temps. Has anyone else done this? Please share with me your experience. Did you have to adjust both the high and low speed fan temps? Or does setting the low speed fan engage to a lower temp automatically bring down the high speen fan temp too? I called Superchips and the guy had no idea what I was talking about. It wasn't very reassuring. Any help with specific experience is welcome. Thanks.
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Old 07-12-2014, 11:23 AM   #2
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This is my first replay in this forum.
I am in the same boat, I got diablosport trinity 1000 and had the same issue I do have 2014 rubicon auto and the temp reach 219-230 on the high way most of the time when ambient temp is 80+.
I have tried to play with fan setting on my diablosport and it does load the setting but it doesn't take an affect on the PCM.
I called diablosport and explained my situation several time and finally the admitted the 2014 jk has different software than the 2013.
I am still waiting diablosport to solve the problem for 2 weeks now and haven't got any call back from them.
So diablosport doesn't work with 2014.
Many feature doesn't work.
Fog lights feature not working
Fan adjustment not working
Throttle boost not working.
78 octane mpg boost which is the only one I have tried it does not work.

I called superchips and asked the about flashpaq fan adjustment for 2014 and the rep have no idea what I am talking about. Then I asked him if he can call thw engineering department to confirm if the flashpaq will work with 2014 and then I got the answer!!
Flashpaq fan adjustment does not work with 2014.

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Old 07-12-2014, 12:18 PM   #3
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I have a superchips programmer, and while I have never adjusted my fan speeds, I did notice it in the menus. There are separate adjustments for high and low speed fan control. I'm not sure how much adjustment you have, because like I said, I've never actually adjusted it.

I'm considering reloading the 93 octane tune, so if you'd like, I can take pictures of the menu when I hook the tuner back up.
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Old 07-12-2014, 01:46 PM   #4
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I dont have a full programmer, but my Aeroforce gauge has a setting to force the fan to high or low, but it doesnt work at all. Something has changed in the 2014's fan programming that none of the 2012-13 stuff works. I bet somebody will get it figured out though.
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Old 07-12-2014, 02:28 PM   #5
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The fact is until 2013 most of chrysler products has two fan sitting or 3 fan sitting low, mid, high.
the 2014 use pulse width modulation fan controller which is totally different from earlier years model. The new system is work very complex it does read ambient temp and transmission oil temp for auto trans and coolant temp also the condenser pressure then the controller will decide the fan speed.
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Old 07-16-2014, 02:22 PM   #6
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No wonder why my 14 seems to run hotter under load than my 12! Thanks for that info. Two dealers couldn't even explain that to me. Someone figure out a fix please... I don't like seeing temps that high and my gauge over half!
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Old 07-16-2014, 04:03 PM   #7
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This explains as to why my 2013 temp gauge, doesn't go above the 1/2 mark. When I shot the top tank temp, it was 207 degrees, and 113 ambient outside.
So the change then took place in 2014, and that explains some of these high temps that you are seeing.
This is very interesting.......

Maybe the FEDS, are mandating better emission control!!!!
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Old 07-16-2014, 11:28 PM   #8
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Yep. I climbed the same hills in my 12 and never saw it get over 1/2 on the dummy gauge. This 14 does it all the time! Probably because Jeep is using the exact same gauge/sending unit, yet it now runs hotter. Scared the hell out of me at first. I've sorta gotten used to it now, but sure don't like it!
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Old 07-17-2014, 02:07 AM   #9
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I am still waiting Diablosports to release there new update for my trinity, i will keep you guys updated.
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Old 10-18-2016, 05:17 PM   #10
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Quote:
Originally Posted by elToro View Post
Long story, and its been covered here ad nauseam, but my driving needs make my Jeep get a little hotter than I like. Not overheating, but when working HARD it will get a little over the 1/2 mark before the cooling fan finally does its work.

(Before someone says something is wrong, it's not. It's been totally gone through by two different dealers and STAR cases opened. I just work it hard climbing hills and what I see is normal given the conditions).

After a little research, I found out why. In the 2014's, the cooling fan kicks on at low speed at about 226 degrees and doesn't reach full on high speed until high 230's. I don't like that. So I'd like to drop the temps at which the fan kicks on.

I know I can do that with a Superchips. I have NO interest in messing with any other setting other than the fan engage temps. Has anyone else done this? Please share with me your experience. Did you have to adjust both the high and low speed fan temps? Or does setting the low speed fan engage to a lower temp automatically bring down the high speen fan temp too? I called Superchips and the guy had no idea what I was talking about. It wasn't very reassuring. Any help with specific experience is welcome. Thanks.
I have ur same problem with especially the uphills, still looking for a solution, did u find it?
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Old 10-18-2016, 07:53 PM   #11
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Quote:
Originally Posted by relyt View Post
I have a superchips programmer, and while I have never adjusted my fan speeds, I did notice it in the menus. There are separate adjustments for high and low speed fan control. I'm not sure how much adjustment you have, because like I said, I've never actually adjusted it.

I'm considering reloading the 93 octane tune, so if you'd like, I can take pictures of the menu when I hook the tuner back up.
What Superchips programmer do you have? I have the Trail Dash 2 for 2015+ Wranglers and never noticed that option. Might need to play around with it some more.
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Old 10-18-2016, 09:46 PM   #12
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Guys it is in the menus of the TD2, but it [bold]does not work [/bold] on 14s and up. I've been around and around with Superchips about this, and they either can't or won't make it work.

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Old 10-18-2016, 10:24 PM   #13
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Quote:
Originally Posted by ScaldedDog View Post
Guys it is in the menus of the TD2, but it [bold]does not work [/bold] on 14s and up. I've been around and around with Superchips about this, and they either can't or won't make it work.

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Did you have your ECM flashed by Superchips?
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Old 10-18-2016, 10:32 PM   #14
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I've got a 14, so no.

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Old 10-18-2016, 11:41 PM   #15
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Hmm, gonna play with my setting tomorrow.
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Old 10-18-2016, 11:54 PM   #16
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I think I saw it in the tuner when you select custom tune, you then have the option to change the fan start/speed temps. Here is the page in the manual that shows it ....
Attached Files
File Type: pdf Page 38 Custom Options Explained.pdf (146.5 KB, 47 views)
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Old 10-18-2016, 11:57 PM   #17
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I think I saw it in the tuner when you select custom tune, you then have the option to change the fan start/speed temps. Here is the page in the manual that shows it ....
This is using the TrailDash2 unit for JK 2015-16
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Old 10-19-2016, 12:04 AM   #18
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Before you change any settings, document the temperature at which your fan starts, with the AC off. After you make the changes in the TD2, repeat the test and post your results here.

When I did this, mine started at 226*, no matter where I set the start temp in the TD2. When I called Superchips, they fessed up and admitted the setting doesn't work on the 14s and up (and maybe not on any 3.6, come to think of it).

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Old 10-19-2016, 11:53 AM   #19
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Quote:
Originally Posted by zeyad View Post
The fact is until 2013 most of chrysler products has two fan sitting or 3 fan sitting low, mid, high.
the 2014 use pulse width modulation fan controller which is totally different from earlier years model. The new system is work very complex it does read ambient temp and transmission oil temp for auto trans and coolant temp also the condenser pressure then the controller will decide the fan speed.
Did you had your Diablo tuner updated recently ?
I wonder if there is any difference from 2 years ago until now.
The fan logic is the same from all JK models from 2012 up to 2015, i know because i can look in the calibrations with my tuning software, there is lo,mid and hi speed, and the pcm uses the outside temp and coolant temp to command the fan on based on 2 different outside temp ranges, asides from trans oil temp. the first two make the biggest difference. i'm commanding mine to get the fan on at 210F vs 226F from factory. this makes a big difference, especially going up hill, max temp i've ever seeing in my Jeep going uphill is 219F.

I've posted the fan logic from 2011 (3.8L) through 2015. i haven't seeing the calibrations for the 2016 or 2017 JK yet

How hot is too hot (3.6L)
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Old 10-26-2016, 01:49 PM   #20
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I talked to Superchips the other day and they told me that they do not have access to the fan setting and it isn't even in the ECM/PCM options for them to use anymore and it's done by some other way now.

The option has been remove from TD2 current models and if update your TD2 it will remove it from the older models also that don't have access.

Does this mean we have a separate fan system that could be adjusted from other means? may have to look into this. It's 78 out and the fan kicked on at a stop light, engine temp was 226-230. Seems a little late for me maybe 215-220 start speed.
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Old 10-26-2016, 02:52 PM   #21
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You gotta love the Superchips guys. A different answer every time, but all pointing to "It don' work". FWIW, my TD2 does have the fan options, and SC hasn't released any new code for the thing since I bought it in July. But, as we have all figured out, the fan options "don' work" on the 3.6s.

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Old 10-26-2016, 03:03 PM   #22
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Originally Posted by JKDesertdog View Post
I talked to Superchips the other day and they told me that they do not have access to the fan setting and it isn't even in the ECM/PCM options for them to use anymore and it's done by some other way now.

The option has been remove from TD2 current models and if update your TD2 it will remove it from the older models also that don't have access.

Does this mean we have a separate fan system that could be adjusted from other means? may have to look into this. It's 78 out and the fan kicked on at a stop light, engine temp was 226-230. Seems a little late for me maybe 215-220 start speed.
Thanks for saving me money and a headache. I wonder if the easiest fix for the 2014-2016's is to put a push fan in the front of the radiator and set it up to come on long before the factory fan does?
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Old 10-26-2016, 06:01 PM   #23
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Thanks for saving me money and a headache. I wonder if the easiest fix for the 2014-2016's is to put a push fan in the front of the radiator and set it up to come on long before the factory fan does?
I was thinking of this also a pusher fan but where I'm I going to put a E-Force super charger cooler? I already have 2 cores in front of the radiator now, I think I'm running out of room but I may have to relocate the cooler somewhere else.
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Old 10-27-2016, 05:48 PM   #24
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I was thinking of this also a pusher fan but where I'm I going to put a E-Force super charger cooler? I already have 2 cores in front of the radiator now, I think I'm running out of room but I may have to relocate the cooler somewhere else.
I was referring to a stock Wrangler. It sounds like you have your hands full. Keep us updated on your fix.

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