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-   -   my2014 GC diesel overheating? (http://www.jeepgarage.org/f107/my2014-gc-diesel-overheating-67084.html)

tomaco 10-24-2013 08:07 PM

my2014 GC diesel overheating?
 
Did anyone got that coolant temperature goes to the last white column on the gauge? is it overheating?

My diesel laredo grand cherokee just one week old, and 2 problems are found.
1. One side hot and one side cold with aircon on, but it seems it is a common problem.
2. The engine has a burning smell when i am moving on a traffic jam, and the coolant temperature goes high with aircon off, but the coolant temperature goes down to middle of second whit column from third column with aircon on. It seems the cooling fan of the engine is not on even when it is burning smell when aircon off. The temperature outside just 26 degrees

I took it back to dealer and the problem 1 had been fixed. but problem 2 still there and they said there is not problem, they said it is normal and the cooling fan will kick on at 106 degrees.

But 106 degree should be steam, not water. NISSAN AND VW told me that their cooling fan should start at 90 degrees.

Gustlock 02-06-2014 08:54 PM

Re: my2014 GC diesel overheating?
 
Late reply but are having the same problem when towing. Temp guage rose to the white line just below the amber/red scale and transmission temp was 97deg C. Van was unloaded (2300kg) and only a very moderate climb for 25km up the hills just out of Perth on a 29deg C day. Stayed mostly in 7th, sometimes 8th gear between 1400 and 1800rpm and DRIVE selected, so was doing it easy. Had to back off from just under 90kph to under 80kph about 3/4 the way up to keep the temp to still just above normal position. Have towed my boat weighing 2000kg Perth to Mandurah about 80km, flat country sitting on about 95kph most of the time and temp rises to the full white bar above normal. Been told this is NORMAL by Jeep AU as the bells and whistles didn't activate. GO FIGURE this vehicle is supposedly able to tow 3500kg.
IN THEIR DREAMS!! At the dealers with this problem and finally getting cruise fixed and updates for other issues.

Ventureprise 10-19-2014 09:50 PM

Re: my2014 GC diesel overheating?
 
6 Attachment(s)
Sounds similar to my experience yesterday (oct 19 2014). Driving in outer Melbourne yesterday and JGC (MY2014) overheated. Gushed coolant through engine bay. See pictures. Took a video too but not sure it can be posted on Jeep Garage.
Attachment 47766Attachment 47767Attachment 47769Attachment 47770Attachment 47771


Sent from my iPhone using JeepGarage

fwdjeep 10-19-2014 10:21 PM

Re: my2014 GC diesel overheating?
 
Quote:

Originally Posted by Gustlock (Post 971678)
Late reply but are having the same problem when towing. Temp guage rose to the white line just below the amber/red scale and transmission temp was 97deg C. Van was unloaded (2300kg) and only a very moderate climb for 25km up the hills just out of Perth on a 29deg C day. Stayed mostly in 7th, sometimes 8th gear between 1400 and 1800rpm and DRIVE selected, so was doing it easy. Had to back off from just under 90kph to under 80kph about 3/4 the way up to keep the temp to still just above normal position. Have towed my boat weighing 2000kg Perth to Mandurah about 80km, flat country sitting on about 95kph most of the time and temp rises to the full white bar above normal. Been told this is NORMAL by Jeep AU as the bells and whistles didn't activate. GO FIGURE this vehicle is supposedly able to tow 3500kg.
IN THEIR DREAMS!! At the dealers with this problem and finally getting cruise fixed and updates for other issues.


Similar issue on my MY13 Limited CRD
Each time have been told normal, but some seem to have the issue and others not so much



Sent from my iPad using JeepGarage

Benn0 10-19-2014 11:46 PM

Re: my2014 GC diesel overheating?
 
Well coolant leaking can't be normal, I'm guessing there is a broken hose somewhere..... My take on the rising engine temp is the EGR valve closes when the car is under load, and that increases combustion temps with higher oxygen content. I would trust the computer to tell you when it is too hot, rather than worrying about the gauge rising. If it dies due to overheating then it should be a warranty job anyway.

mariner99 10-20-2014 12:41 AM

Re: my2014 GC diesel overheating?
 
This sounds like normal behaviour (except for the aircon). The burning smell is very likely from the dpf regen cycle having been interrupted or just recently completed (burning ash from the DPF via high exhaust gas temps).

The thermostat temperature is also normal in the diesel versions, they're designed to run hot as the coolant valve doesn't open completely until you begin to approach redline temp (as soon as the valve opens you will notice temp gauge will go down again or at least normalise).

Again normal, you will notice large fluctuations in temperature depending on load in the Diesel, largely because the temp display is actually accurate as opposed to most other manufacturers where it doesnt actually move until you already overheating. Of course if the vehicle is under load than the engine temp is going to rise, its normal. You old codgers just aren't used to seeing a temp gauge that represents what is actually going on

:slapfight::slapfight::slapfight::slapfight::slapf ight:

Gustlock 10-20-2014 01:10 AM

Re: my2014 GC diesel overheating?
 
Ventureprise hope all is well and coolant loss is being resolved.
Have followed many posts on JG and other forums regarding this rise in guage coolant temps during towing and to be fair to Jeep I have not experienced any issues from this happening. The issue is however how come some vehicles do experience this rise and others not? I have now towed with this vehicle in excess of 13000km and find it performs extremely well in most conditions. I understand that the thermostat is set quite high but what I have found is that the cooling fan, high speed setting cuts in too late and is slow in capturing the coolant temperature when the engine comes under load or at ambient temps above 28deg C. Many have commented to reassure me that all is fine. To have peace of mind I fitted an auxillary fan, (manually switched) forward of the radiator and attached to the intercooler adding additional cooling airflow when I feel it is needed. "JUST DON'T LIKE IT GETTING THAT HOT!!"


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