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  #61  
Old 05-21-2014, 09:09 AM
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Re: Towing Review//Engine Heat

Oil temps over 270F are common with turbos. My normal temp on my BMW 335 is 245F. Jeep and VM know this and want the engine to run as hot as possible because it is more efficient that way and helps to reduce emissions.

I think the many reports from Oz and the US showing high oil temps are normal. If they were not Jeep would be taking some action to correct this problem. I don't think it is a problem. When the 335 came out and oil temps hit 260F and above in the summer many of us were concerned. It was not issue until you hit above 270F when the engine goes into limp mode.

Caution when changing your oil yourself as this oil is hot and will burn you bad if you don't let it cool down. When I first changed my BMW oil you could feel the heat radiating out of the engine and when the oil came out it was above the boiling point of water...

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  #62  
Old 05-22-2014, 11:19 PM
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Re: Towing Review//Engine Heat

Quote:
Originally Posted by ExcursionDiesel View Post
That is a spot on description of EGT cause and effect. Lugging a diesel creates high EGT even when loads aren't maxed out. Keeping RPMs up in the 2200+ range helps under heavy tow conditions. Also more water is circulated.

The GC CRD has an EGT sensor built in and its reading is visible via ODBII using the Torque App on an Android device with an ELM327 Bluetooth adapter plugged in the diagnostic port. I have no idea if its pre or post turbo but it changes rapidly. I have seen 1200 F at wide open throttle and 8th gear at 70 mph on flat ground runs 650 to 720 F. During DPF Regen the Cat Temp (also visible) and EGT went to 1200 F for several minutes.

Anyone towing should invest in a Torque App setup. I have $30 total invested.
I have the torque app via bluetooth but am unable to locate the EGT output. I have the free version of Torque which I have read elsewhere will support EGT.
Can someone advise me how to get that part of the app working please.
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  #63  
Old 05-23-2014, 08:06 PM
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Re: Towing Review//Engine Heat

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Originally Posted by Blackadder785 View Post
I have the torque app via bluetooth but am unable to locate the EGT output. I have the free version of Torque which I have read elsewhere will support EGT.
Can someone advise me how to get that part of the app working please.
When you select "Realtime Information" you have to add a gauge then select the Exhaust Gas Temperature sensor. The default gauges don't show EGT. BTW, I have the paid version.

Also you can go to your "Adapter Status" and all supported sensors are reported in a list. Look for EGT. Mine shows it.
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  #64  
Old 05-23-2014, 09:26 PM
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Re: Towing Review//Engine Heat

Quote:
Originally Posted by ExcursionDiesel View Post
When you select "Realtime Information" you have to add a gauge then select the Exhaust Gas Temperature sensor. The default gauges don't show EGT. BTW, I have the paid version.

Also you can go to your "Adapter Status" and all supported sensors are reported in a list. Look for EGT. Mine shows it.
Thanks E.D.
I would have thought that free version and paid version were similar in most respects, but "Realtime Information" and "Adapter Status" are not showing on my menus. (Unless I am looking in the wrong place - which is quite likely).
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  #65  
Old 05-23-2014, 10:32 PM
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Re: Towing Review//Engine Heat

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Originally Posted by Blackadder785 View Post
Thanks E.D.
I would have thought that free version and paid version were similar in most respects, but "Realtime Information" and "Adapter Status" are not showing on my menus. (Unless I am looking in the wrong place - which is quite likely).
Those icons are located radially around the large Tach display.
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  #66  
Old 05-26-2014, 01:29 AM
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Re: Towing Review//Engine Heat

I have upgraded to the paid version of Torque, and it has all the data I was looking for but couldn't find in the free version. EGT, Cat temp etc.
Thanks for all your help. I feel that I have enough data to manage engine temps when towing now even if it's a non-issue.
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  #67  
Old 06-02-2014, 06:44 PM
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Re: Towing Review//Engine Heat

I towed a 6x12 enclosed cargo trailer weighing around 3500 lbs for 1000 miles or so this last weekend. I was a bit surprised to see how the WK2 Diesel warmed up so easily when pulling moderately. Rolling hill grades were in the 6% range and ambient temps were in the low 80s. Elevation less than 2500'. With a load of this type under those conditions I would not expect to see the water temp gauge climb all the way to one needle width below the yellow mark. Playing with the engine rpms/gears had little impact it seemed. Seems like the cooling system is a little undersized for this 3.0 liter diesel engine. I'm not all that concerned about it since it seemed to stabilize before it hit the yellow mark, but I was a little surprised nonetheless. On a good note tranny temp held at 199 or less and lube oil temp maxed at 238... neither of which caused any concern of course.
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  #68  
Old 07-14-2014, 09:10 PM
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Re: Towing Review//Engine Heat

My 2014 diesel GC has no fuse in the F03 location, which is noted on the diagram on the inside cover of the fuse box to be the fuse for the radiator fan. Anyone else notice this? I wonder if the radiator fan is kicking in for those of us who have been experiencing high engine heat on steep inclines.
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  #69  
Old 07-14-2014, 10:03 PM
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Re: Towing Review//Engine Heat

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Originally Posted by Emersonjeep View Post
My 2014 diesel GC has no fuse in the F03 location, which is noted on the diagram on the inside cover of the fuse box to be the fuse for the radiator fan. Anyone else notice this? I wonder if the radiator fan is kicking in for those of us who have been experiencing high engine heat on steep inclines.
Mine doesn't either. But there is also only one terminal in that socket.
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  #70  
Old 07-15-2014, 12:52 AM
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Re: Towing Review//Engine Heat

Seems like the diesel manages heat pretty well. In this video these guys are towing a 5500 trailer and have the gas pedal floored for most of the incline.

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  #71  
Old 07-15-2014, 08:24 PM
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Re: Towing Review//Engine Heat

I wish they would have done the test while not in Eco mode. Should have at least turned it off...although sport would have been preferred and yielded better results.


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  #72  
Old 07-16-2014, 01:27 AM
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Re: Towing Review//Engine Heat

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Originally Posted by MuSh View Post
I wish they would have done the test while not in Eco mode. Should have at least turned it off...although sport would have been preferred and yielded better results.


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I think it's better that they kept it in eco. Shows that even without downshifting and the gas pedal floored the car's temperatures did rise, but did not overheat. Even for us that tow, we wouldn't be abusing the vehicle like they did. We would downshift, let more airflow through the motor, and usually we wouldn't be at that high of an altitude or incline.

I know it's concerning that the water temps rise but as long as we don't have reports of actual overheating, looks like the engineering is sound. Towing a 5k trailer from Los Angeles to Vegas in 110 ambient, my oil gets to 270 at times and the car keeps chugging along just fine
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