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  #1  
Old 03-28-2016, 07:18 PM
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Thumbs down Engine temps raising then falling quickly

Recently noticed that the fans have been kicking on a lot more and at high intensity. The high coolant gauge reading corresponds with the fans kicking on. The temps seem to go back normal rather quickly after the fans turn on and i lay off of her.

Tested tonight and ran her hard for a quick 2 mins, I was able to make the warning message for coolant temps come on. Maybe 30-40 seconds after slowing down into the neighborhood the temps seemed to go back normal.
Ambient temps are around 70F here, so not very warm. Could this be a tstat failure / air in the system / or something else.

**unfortunately i don't have access to the performance pages to get a exact reading, as they say i need a uconnect subscription for that / remote start and finding work fine! Thats another story**

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  #2  
Old 03-28-2016, 10:39 PM
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Re: Engine temps raising then falling quickly

Something going on with the cooling system.
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  #3  
Old 03-29-2016, 02:51 PM
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Re: Engine temps raising then falling quickly

Update:
Car is in shop... Called for an update and the service advisor says they are out testing a software update?!?
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  #4  
Old 03-30-2016, 06:52 AM
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Re: Engine temps raising then falling quickly

Got truck back last night. They wanted to replace water pump, tstat, and flush system as they saw some contamination. $116 diagnostic fee!

I swapped my 190 tstat back to stock myself this morning and that fixed the issue... Guess the 190 was stuck.

Dealership did some great troubleshooting!?😒
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Old 03-30-2016, 12:48 PM
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Re: Engine temps raising then falling quickly

I dont have a sub and my performance pages work fine, thats weird
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Old 03-30-2016, 12:54 PM
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Re: Engine temps raising then falling quickly

Quote:
Originally Posted by El Jefe View Post
I dont have a sub and my performance pages work fine, thats weird
Yup very weird. I got the free month trail back in December and all the remote start/ vehicle find/ send to vehicle features still work... Not too stressed about it. I use those features more than the performance pages anyway...
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Old 03-31-2016, 08:29 AM
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Re: Engine temps raising then falling quickly

Quote:
Originally Posted by CLStech View Post
Yup very weird. I got the free month trail back in December and all the remote start/ vehicle find/ send to vehicle features still work... Not too stressed about it. I use those features more than the performance pages anyway...

A short while after getting my used '14. The performance page stopped working. I updated the Uconnect and it started working again. Maybe that's what you need.


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Old 03-31-2016, 08:36 AM
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Re: Engine temps raising then falling quickly

Quote:
Originally Posted by Jnunez636 View Post
A short while after getting my used '14. The performance page stopped working. I updated the Uconnect and it started working again. Maybe that's what you need.


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What do you mean by updating unconnect? I'm honestly not too worried about it because I'm seemingly getting all the other paid unconnect features for free.
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Old 03-31-2016, 09:24 PM
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Engine temps raising then falling quickly

Quote:
Originally Posted by CLStech View Post
What do you mean by updating unconnect? I'm honestly not too worried about it because I'm seemingly getting all the other paid unconnect features for free.



https://www.driveuconnect.com/software-update/


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Old 03-31-2016, 10:00 PM
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Re: Engine temps raising then falling quickly

I had that error too on my '14 when I bought it 3 months ago. I updated it with the update that fixed the potential hacking of the vehicle via the cell signal, and it fixed my performance pages. Never tried any of the other features. Are you sure you don't have access to the paid stuff because of the free trial? The app links to your account which determines available features, which is all stored on their servers, not the truck.
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Old 03-31-2016, 10:07 PM
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Re: Engine temps raising then falling quickly

My free trail ended back in January. The website confirms I currently don't have a subscription however from the app I can locate the vehicle etc. Everything is normal except for this message when opening the performance pages.
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Old 03-31-2016, 10:49 PM
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Re: Engine temps raising then falling quickly

Quote:
Originally Posted by CLStech View Post
...Dealership did some great troubleshooting!?😒
Uh, err, u mean some "software testing" launches I'm thinkin'

Any evidence of it on the timers?
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