Losing coolant after full throttle run - Ford Powerstroke Diesel Forum
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Old 04-22-2013, 10:29 PM
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Losing coolant after full throttle run

Hi Guys,

My son-in-law just picked up an '06 F250 crew cab short bed. I'm helping him with research on issues with the 6.0 Powerstroke. He has had the truck for about a week and called me today because it is pushing out coolant after full throttle acceleration.

The truck is bone stock except for 33" tall tires. When he test drove it he romped on it for a short distance and on returning to the dealer he noticed a puddle of coolant forming. They popped to hood and it was coming from the reservoir cap. They thought someone had probably not tightened the cap properly. He got on it again today and ran it up from 60-90 mph and it puked coolant again from the reservoir cap.

We're concerned it might be a blown head gasket. Any thoughts on most likely causes for this coolant loss?

Thanks,
Lyle
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Old 04-22-2013, 10:52 PM
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Could be blown head gaskets, a bad coolant cap on the degas bottle, or too much coolant. The new "full" mark for the 6.0 is the min mark on the degas bottle. If there is too much coolant, it will puke out. Do you know if there has been previous head work done?
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Old 04-22-2013, 11:33 PM
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Headgaskets or egr cooler. How mechanically inclined are you 2?
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Old 04-22-2013, 11:48 PM
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I am pretty new to these but IF he is lucky it could just be a bad cap. or at least that is the case with any of my old trucks
correct me if I am wrong. as I said I am REAL new to these trucks BUT
I assume if it is the head gaskets he will be getting milkshake in his oil.

Last edited by john galt; 04-22-2013 at 11:51 PM.
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Old 04-22-2013, 11:58 PM
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True statement...I remember the OP asking about fuel issues in a different thread and mentioning not having funds to dump into the truck. I'm siding with Laferty, it being gaskets or egr cooler, but could be a simple fix. (We hope)
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Old 04-23-2013, 12:00 AM
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Kells somehow I completely missed your post...never mind
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Old 04-23-2013, 12:03 AM
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Quote:
Originally Posted by kells17 View Post
True statement...I remember the OP asking about fuel issues in a different thread and mentioning not having funds to dump into the truck. I'm siding with Laferty, it being gaskets or egr cooler, but could be a simple fix. (We hope)

from what I have learned on this forum I am GUESSING you are probably right but I am HOPing for an easy fix. I have to I just bought a salvage
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Old 04-23-2013, 12:05 AM
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Quote:
Originally Posted by john galt View Post
I am pretty new to these but IF he is lucky it could just be a bad cap. or at least that is the case with any of my old trucks
correct me if I am wrong. as I said I am REAL new to these trucks BUT
I assume if it is the head gaskets he will be getting milkshake in his oil.
That is not a requirement to be bad gaskets. They could be bad in a place that is not allowing cross contamination of fluids. Generally on these engines the headgaskets are proven bad when you do a egr delete and are still puking coolant. The cause is the cylinder pressure is being leaked into the coolant system and causes it to become over pressurized
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Old 04-23-2013, 12:10 AM
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Originally Posted by john galt View Post
Kells somehow I completely missed your post...never mind
Bleh...no worries, CHIVE on!
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Old 04-23-2013, 05:50 AM
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Don't know if you saw this sticky in the general 6.0 thread, this may help you guys.

Troubleshooting coolant loss (white residue around cooling system components(degas))
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