05' 6.0 is burping coolant.... - Ford Powerstroke Diesel Forum
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Old 06-06-2011, 04:04 PM
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05' 6.0 is burping coolant....

I just returned from a 1500 mile trek across TX, dragging my 12K lb 5th wheel. On this trip I burned through 3 gallons of coolant, approximately a gal every 500 miles. There is no white smoke, only some evidence of coolant burping out the degas bottle. The outside temp ran between 95-108 deg, but my truck stayed at a pretty constant 208, minus a couple of big hills. I would normally blame the EGR cooler, but I just replaced the factory EGR cooler/oil cooler with a whole system from Bulletproof Diesel. My next guess would be head gasket, but I checked the oil sump and there's no coolant in there either. So what happened?
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Old 06-06-2011, 04:12 PM
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degas tank cap?
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Old 06-06-2011, 04:16 PM
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Replaced it with a new one from Ford before the trip...maybe I should go back to the old one.
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Old 06-06-2011, 04:20 PM
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headgaskets
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Old 06-07-2011, 01:21 PM
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I'm sorry but I think it is HGs also...
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Old 06-07-2011, 01:59 PM
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Send a message via Yahoo to Dave
Gaskets are bad
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Old 06-07-2011, 03:16 PM
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Well crap! That was the one thing I was hoping it wouldn't be.
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Old 06-07-2011, 04:24 PM
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just curious, how do you diagnose the head gaskets being bad and not another problem? I know how to find out if it is the cooler but is there any way to nail down the gaskets being bad?
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Old 06-07-2011, 05:22 PM
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to be honest, not really. you could test for combustion gases in the coolant but most wouldn't have the equipment (I've never seen it)

when you think about it there are only a few things that could cause the cooling system to overpressurize but only under load. when you rule the other things out (egr cooler or overheating) then there's nothing left

not to mention the obvious headgasket issue that already exists, it's a pretty straight forward diagnosis

ALSO! first and foremost, make sure you are not overboosting, you should not make over 28psi at any time on the stock tune. remember the 6.0 is loaded hot from the factory, any extra cylinder pressures aren't going to help anything

Last edited by sinner6.0L; 06-07-2011 at 05:25 PM.
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Old 06-08-2011, 01:52 PM
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I had the exact same issue, while pulling a 5th as well.... mine had no smoke either and it was HG.
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