Engine coolant temps.....Seems high to me - Ford Powerstroke Diesel Forum

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post #1 of 11 Old 05-30-2011, 04:40 PM Thread Starter
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Engine coolant temps.....Seems high to me

I just did a 500 mile trip hauling my rzr and about another 800lbs of payload (2000lbs total). Truck ran great, but I spent a lot of time watching my ECTs/EOTs on my Edge CTS. My Delta was never more then 11F, and most the time in the 9F range. Today when coming home I was averaging 70-75mph and ym ECTs were 212-216F on the CTS. I had an ID tow tune on when hauling. I had the AC on, and it was about 80F outside. This seemed really hot to me, but maybe that is normal. Do I have anything I should worry about? What does everyone else see in conditions like this?
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post #2 of 11 Old 05-30-2011, 04:47 PM
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Originally Posted by barry1me View Post
I just did a 500 mile trip hauling my rzr and about another 800lbs of payload (2000lbs total). Truck ran great, but I spent a lot of time watching my ECTs/EOTs on my Edge CTS. My Delta was never more then 11F, and most the time in the 9F range. Today when coming home I was averaging 70-75mph and ym ECTs were 212-216F on the CTS. I had an ID tow tune on when hauling. I had the AC on, and it was about 80F outside. This seemed really hot to me, but maybe that is normal. Do I have anything I should worry about? What does everyone else see in conditions like this?
t-stat could be stuck closed or partially. i would start with a t-stat thats damn hot

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post #3 of 11 Old 05-30-2011, 05:44 PM
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Originally Posted by 2003kingranch View Post
t-stat could be stuck closed or partially. i would start with a t-stat thats damn hot
Actually, no it isn't. The thermostat does not fully open until it is in the 220°F range. Try the same thing without the tune, it will likely be cooler.
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post #4 of 11 Old 05-30-2011, 06:09 PM Thread Starter
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so 220 is a normal operating temp? my 6.4L ran much cooler....it was almost always 192-196
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post #5 of 11 Old 05-30-2011, 06:18 PM
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No, I wouldn't call it a "normal operating temp."
Towing at 75MPH, tuned, with the AC blasting, and 80°F outside are all factors.
The biggest factors are towing and tuned
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post #6 of 11 Old 05-30-2011, 06:22 PM
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220 is a little on the high side, but not dangerous (seems like towing a heavy load would exacerbate the situation however)-Diesel's run more efficiently the hotter they get (to a point). Id change the t-stat and verify the clutch fan works.
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post #7 of 11 Old 05-30-2011, 06:22 PM
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Originally Posted by barry1me View Post
so 220 is a normal operating temp? my 6.4L ran much cooler....it was almost always 192-196
That's Why I thought the t-stat was stuck. My 6.0 runs 190-195.


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post #8 of 11 Old 05-30-2011, 06:32 PM Thread Starter
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Originally Posted by dazdillenger View Post
220 is a little on the high side, but not dangerous (seems like towing a heavy load would exacerbate the situation however)-Diesel's run more efficiently the hotter they get (to a point). Id change the t-stat and verify the clutch fan works.
how do I verify if the clutch fan is working? What temp T stat should I get?
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post #9 of 11 Old 05-30-2011, 07:03 PM
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Originally Posted by barry1me View Post
how do I verify if the clutch fan is working? What temp T stat should I get?
My fan comes on around 212-214* and the only t/stat to get is one from Ford because if something happen it will mess up in the stuck open pos. with that said your temps are fine the t/stat starts to open at 192.2 and is fully open at 219.2 no dig deal you are good.
O when the fan comes on it will sound like a jet plane.
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post #10 of 11 Old 05-30-2011, 07:17 PM Thread Starter
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Originally Posted by 2 stroker View Post
My fan comes on around 212-214* and the only t/stat to get is one from Ford because if something happen it will mess up in the stuck open pos. with that said your temps are fine the t/stat starts to open at 192.2 and is fully open at 219.2 no dig deal you are good.
O when the fan comes on it will sound like a jet plane.
2 stroker
I dont recall hearing the fan but i know it was on cuz when I opened the hood I could feel the air rushing back on the engine.
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