Coolant Pressure by Temperature? - Ford Powerstroke Diesel Forum
 
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post #1 of 6 Old 12-13-2012, 03:30 PM Thread Starter
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Coolant Pressure by Temperature?

So I have a gauge on my truck and at normal operating temp of 190-195 degrees the pressure is at 9-10lbs while running a tow tune IDP 8K and the Atlas 40. Ofcourse if I am towing and the temps increase to around 210 the pressure is now at 12-13 degrees and thats as high as it gets.

My question is what kind of pressure is normal for the higher temps? I know the coolant expands make more pressure as the temp rises but with the 16psi relief on the cap what temperature would that be?

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post #2 of 6 Old 12-13-2012, 03:41 PM
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Quote:
210 the pressure is now at 12-13 degrees and thats as high as it gets.
I assume you mean PSI ?

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post #3 of 6 Old 12-13-2012, 03:58 PM Thread Starter
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Yes PSI. not sure why I said degrees


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2004 F-350
Edge Insight CTS
4"MBRP Cat Delete
SCT tuned by Innovative
ARP Head Studs
03 Turbo
Leveled on 35's
Sinister EGR Delete
6.4 Banjo's Blue Fuel Spring
ELC Coolant/Sinister Filter
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post #4 of 6 Old 12-13-2012, 06:38 PM
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It can range and vary by truck, obviously if you were flying over 16lbs psi and blowing coolant out the cap you should be concerned. My truck around 210 will get to 12-13 psi too, the fan kicks on at 214 on my truck. You need other symptoms of an issue (coolant loss, white smoke) etc before I would worry about it.

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post #5 of 6 Old 12-13-2012, 07:50 PM
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Your numbers are pretty normal. Your "cold fill level" will affect the pressures. If you fill it too full, the liquid expansion acting on a very small vapor space will make it exceed 16 psig.

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post #6 of 6 Old 12-14-2012, 04:23 AM Thread Starter
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That's what i assumed just have never put a gauge until recently. Was curious to see if it was normal or not. Thanks


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2004 F-350
Edge Insight CTS
4"MBRP Cat Delete
SCT tuned by Innovative
ARP Head Studs
03 Turbo
Leveled on 35's
Sinister EGR Delete
6.4 Banjo's Blue Fuel Spring
ELC Coolant/Sinister Filter
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