Max Temps - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 05-27-2009, 03:36 PM Thread Starter
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Max Temps

What are the max temps I should be seeing on my truck. I know the transmission and egt but what about the coolant and oil temps?

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post #2 of 13 Old 05-27-2009, 06:24 PM
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I wouldn't go past 240 for water and 250 for oil. If I get to that point I would turn to just fog lights (night) and turn off all in cab stuff like radio AC laptop. And turn on the heater. If It gets hotter Id pop the hood and spray water on the grill for a long time. Then do something about keeping the heat down better for next time.

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post #3 of 13 Old 05-27-2009, 06:32 PM
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Originally Posted by smokersteve View Post
I wouldn't go past 240 for water and 250 for oil. If I get to that point I would turn to just fog lights (night) and turn off all in cab stuff like radio AC laptop. And turn on the heater. If It gets hotter Id pop the hood and spray water on the grill for a long time. Then do something about keeping the heat down better for next time.
Huh? WTF?
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post #4 of 13 Old 05-27-2009, 06:33 PM
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Originally Posted by Goose350 View Post
What are the max temps I should be seeing on my truck. I know the transmission and egt but what about the coolant and oil temps?
Cruising I see anywere from 180-211. Towing I see 190-227. Oil should be whithin 5-10 degrees of that.
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post #5 of 13 Old 05-27-2009, 07:39 PM
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Huh? WTF?
they take more engery!!!

if It gets way too hot I will cool it down. Turning on the heater will take heat from the eng. And switching the lights is only for night if it gets hot then.

I will change things on the truck to run cooler.

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Last edited by smokersteve; 05-27-2009 at 07:42 PM.
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post #6 of 13 Old 05-27-2009, 07:43 PM
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Originally Posted by 2005F250 View Post
Cruising I see anywere from 180-211. Towing I see 190-227. Oil should be whithin 5-10 degrees of that.
Thats also what I see normaly

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post #7 of 13 Old 05-27-2009, 07:53 PM
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According to the Ford PC-ED manual, the computer starts to defuel at 221 *F coolant temp and at 254*F oil temp. Aftermarket gauges, depending on where the probe is installed, can read slightly different temps than what the truck computer sees.

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post #8 of 13 Old 05-27-2009, 07:56 PM
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I have never seen over 207 as far as coolant temp on mine.Even towing so far

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post #9 of 13 Old 05-27-2009, 08:13 PM
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Quote:
Originally Posted by smokersteve View Post
they take more engery!!!

if It gets way too hot I will cool it down. Turning on the heater will take heat from the eng. And switching the lights is only for night if it gets hot then.

I will change things on the truck to run cooler.
I can see A/C being the only thing that will make the engine work harder. Turning off the headlights to lighten the engine load doesn't make sense plus it's dangerous and stupid to drive at night with just fog lights. As for spraying the radiator with the garden hose that radiator is gonna be hot and your gonna shock cool it with cold water? Doing that runs the risk of warping and cracking the radiator. If the engine gets hot pull over and let it idle untill temps go down. If it's not cooling down because all the coolant is gone then shut it off.
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post #10 of 13 Old 05-27-2009, 08:19 PM
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Originally Posted by 2005F250 View Post
I can see A/C being the only thing that will make the engine work harder. Turning off the headlights to lighten the engine load doesn't make sense plus it's dangerous and stupid to drive at night with just fog lights. As for spraying the radiator with the garden hose that radiator is gonna be hot and your gonna shock cool it with cold water? Doing that runs the risk of warping and cracking the radiator. If the engine gets hot pull over and let it idle untill temps go down. If it's not cooling down because all the coolant is gone then shut it off.My perspective is from a normal operating eng
Ya im not sure what I was thinking with the lights...................

I understand warping could be a problem.

I for got to also point out it also depends where the temp sensors are placed.

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