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6.7L Power Stroke Engine and Drivetrain Discussion of the 6.7L Power Stroke diesel engine and drivetrain in the 2011-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.7L Power Stroke engine.

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Old 01-29-2013, 10:22 AM   #1 (permalink)
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Transmission Temp

Greetings, Friends!
I haven't towed with my new '13 yet. Driving solo I'm seeing transmission temps anywhere from 195 degrees F - 205 degrees F. On my '05 with a good Autometer trans temp gauge (see sig) I only saw temps like that when towing heavy on a VERY hot day. Is it normal to see these temps when driving solo? What can I expect when towing (+ or - 16,000#)? What would be considered "hot" for these transmissions?
Question #2:
I keep hearing about EGT indications. The only temps I can see on my productivity screen are oil temp and trans temp. Does anyone know how to pull up the EGT?
Thanks in advance for your help.
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Old 01-29-2013, 10:34 AM   #2 (permalink)
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I stuck some pretty good gauges directly into the transmission port on both my 6.0's and seldom see 160 empty and the highest they have gotten is 180 towing 10,000 lbs.

I thought this was way too low but both trucks read exactly the same.

It'll be interesting to see what is said about the new trucks tranny temps.
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Old 01-29-2013, 11:23 AM   #3 (permalink)
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I see 197-205 towing and not towing and oil temp stays about the same. (Edge insight) these trucks have water to fluid coolers instead of air to fluid. Like the old ones.
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Old 01-29-2013, 11:24 AM   #4 (permalink)
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It would depend on where Ford put the temp sending unit.
I doubt it is in the same place as folks have done for the past 20 years, which was to put the unit in the port on the side of the tranny (at least lots did this).
I see 190-195 in my current truck all the time when running empty from 30F up to 100F outside air temps.
Towing my 17k lb 5er, I see 195-210 from 40F to 120F outside air temps.

Hot to me would be 240F and above.
Not sure how/if you can pull up EGT temps on the stock screen. There are like 5 EGT sensors throughout the exhaust.
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Old 01-29-2013, 11:34 AM   #5 (permalink)
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I monitor egt #1 & 2 ,to see regen temps.
to get true EGTs like before you avve to add a sensor pre turbo ( there is not one stock)
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Old 01-30-2013, 11:51 AM   #6 (permalink)
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I'm pretty sure there is no way to see EGTS with the stock display, You will need to add some sort of Monitor or gauge. Most of us have added the Edge CTS which will display any of the 4 pyros that are stock in exhaust system. As mention, They are all 3 foot or more downstream from the engine. So there is no Pre-Turbo sensor on the stock truck. Since Ford changed this engine to a center exhaust. It is difficult to drill and tap and pyro. It's not like adding one to an older engine of drilling and tapping the exhaust manifold. The few folks that have added them seem to be putting them into the EGR Block Off plate when they delete the emission system.

If I remember correctly, the thermostat on the secondary cooling system that cools the tranny is 140F, So I would suspect that you will see tranny temps anywhere from 140 up to the just little over the 200. Even in 100 summer heat and towing 13,000lbs up 8% grades, I never saw the tranny get much over 200.

The Engine oil on the other hand will climb to about 242 on a steep climb with a load.
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Old 01-30-2013, 07:37 PM   #7 (permalink)
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@ PH do you know what the recommended limits are? In my opinion EOT of 242 is shockingly high. If I remember the 6.dooh was at dangerous levels when EOT reached low 230's.

I agree with normal around town are always very standard and remain the same.

Just curious if we have limits if all stock and what happens at those limits?
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Old 01-31-2013, 10:30 AM   #8 (permalink)
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My truck is 100% stock and I tow within all of the ratings of my truck, I see EOT of 248 when it is very hot outside here in Phoenix AZ. It is what it is. I don't get a warning or anything, so I keep on truckin!!!!!! (And passing EVERYONE up those hills.)
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Old 01-31-2013, 12:13 PM   #9 (permalink)
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Back when these trucks first came out, We had a Ford Engineer come on this or one of the other forums and discuss why the designed the engine the way they did. The question was asked of him if the 242 was a safe temp and the response was that is was fine. The flash point for most CJ-4 oils is 400 or higher
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Old 01-31-2013, 06:57 PM   #10 (permalink)
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Thanks - Come Spring I will be putting her thru the paces. We have a large grade heading out of Mass into NY on I90W. I think it is 7 miles and at the top it has a sign that states, highest point on Interstate 90 east of Oacoma, South Dakota. This grade cost me Head Gaskets the first year I had my 05 and an EGR cooler last year.

I plan on soaring over it this year
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Old 01-31-2013, 10:48 PM   #11 (permalink)
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100% stock I see temps of 197-202 empty, and 202-212 towing. It is almost always hot where I live.
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Old 02-01-2013, 06:54 AM   #12 (permalink)
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Quote:
Originally Posted by Munfrobie View Post
Thanks - Come Spring I will be putting her thru the paces. We have a large grade heading out of Mass into NY on I90W. I think it is 7 miles and at the top it has a sign that states, highest point on Interstate 90 east of Oacoma, South Dakota. This grade cost me Head Gaskets the first year I had my 05 and an EGR cooler last year.

I plan on soaring over it this year
i know this run well. i have pulled my trailers over it with my 2006 and the 2012. you will be blown away at how the 6.7L does that pull. there is another member here with a 2011 dually (snowhawk2) that told me that when i first bought my truck, and he was right ! you can just keep accelerating up those grades if you want. the only things holding you back are who's in front of you, staying within the limits of being safe, and if the wind is blowing hard out of the west. with a headwind, i drop to 4th. otherwise, i just wail up it in 5th. i'm pulling a 10.5k 30' TT or 11K equipment hauler.

and if you are interested in knowing what is going on with the truck and temps, i highly recommend putting on an edge insight. i watch all 4 EGT probes, DPF soot %, EOT, ECT and TFT on one screen. that, on top of knowing when the truck is about to most likely start a regen or has actually finished a regen, is great information to know, IMHO.

plus, when towing, you know how long to let the truck idle to cool off the turbo from the EGT 1 reading. i generally let it go down to 350 or so before shutting down. it is the closest post turbo EGT probe to the turbo.
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Old 02-02-2013, 07:46 AM   #13 (permalink)
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Quote:
Originally Posted by Cratos View Post
I monitor egt #1 & 2 ,to see regen temps.
to get true EGTs like before you avve to add a sensor pre turbo ( there is not one stock)
I understand that there is no pre-turbe EGT, but I don't even know how to pull up EGT #1 or #2. Can somebody tell me how?
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Old 02-02-2013, 10:03 AM   #14 (permalink)
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I use the edge insight to monitor everything. it plugs intoyou obd2 port
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Old 02-02-2013, 12:32 PM   #15 (permalink)
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WPETKO, I have noticed the same trans temps not towing on my new F350 and was concerned. I have not towed yet, hope it doesn't get much higher.
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