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Old 03-13-2014, 01:31 PM
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overheated

OK guys I have a 2008 F350 with H&S mini Maxx, DPF delete, and S&B CAI.
I was pulling a heavy trailer last weekend in 50 mph head winds and started to get hot. It did it to me twice actually blew out some coolant. once the wind died down it seemed fine it only over heated when pulling a grade into that wind. Should I be worried? it was only hot for maybe 10 seconds, both times.

Thanks in advance
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Old 03-13-2014, 04:04 PM
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When was the last time you replaced your coolant filler cap?

What was your coolant temperature at the time?
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Old 03-13-2014, 04:32 PM
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My coolant temp got up to 240 briefly and right back down to the 195 . I had the radiator replaced 3500 miles ago and fill with new coolant .stock radiator cap.

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Old 03-13-2014, 08:34 PM
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Quote:
Originally Posted by country41 View Post
My coolant temp got up to 240 briefly and right back down to the 195 . I had the radiator replaced 3500 miles ago and fill with new coolant .stock radiator cap.

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Wow, that is f#king hot!!! Did you happen to be checking EOTs at that time?

That doesn't seem right based on my own experiences. I do hot shotting and gross over 30k quite a bit. I don't have an optimal setup for that weight (35s running 3.73 on a SRW F350). Even at grades of 6% on more on the Interstate, IIRC I have never even seen 220 for ECTs. For me, my EOTs are the problem when towing heavy so I admit, I don't pay as close of attention to ECTs as I do EOTs. My EOTs always run higher when climbing grades and the highest EOT I have ever seen was 226. Now I do take my foot off the gas when climbing grades to help control the temps. With my mods, I do flow more air than you, but again, at least with my experiences, that is a really high temp. Have you checked your T-stats?
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Old 03-14-2014, 06:27 AM
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^^ I agree. At around 220 ECT the engine fan should kick on and cool the temp right back down. Did the fan ever kick on?
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Old 03-14-2014, 07:25 AM
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The funny thing was the truck temp guage never got into the hot zone it did pop up a high coolant logo on the display for just a second. the fan kicked on when it jumped up there it jumped really quick. the temp came right back down but i did have coolant puke out of the cap so that is what really confused me. The EOT got up to about 215 for just a second when it got real hot everything cooled back to normal as soon as i crested the hills. it did this to me about 3 times but the first time was the only time i saw the temp above 220.
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Old 03-14-2014, 07:30 AM
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sounds to me like you have air in your system, a bad cap, and boiled off..

I'd vacuum that rascal and put a new cap on it.. eff the OE cap, though, get a stant 10238 for that thing.
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