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Old 06-05-2014, 06:40 AM
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Help with coolant puking

03 6.0 egr deleted new intercooler 50,000 miles on oil cooler 200,000 on motor.
Hypertech custom tow tune
Swamps ficm
Is puking coolant when driven hard but I finally got my torque adapter in mail and monitored guages yesterday.

Ect stays around 178 to 183 mild driving to wot

Eot stays 182 to 186 mild driving to wot

So delta range is fine. Seems to be running cooler than most people I read on here. So I am assuming is a head gasket leak but could it possibly be something in tuning.

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Old 06-05-2014, 09:54 AM
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Low ECT's indicate a possible bad thermostat. You need to get a pressure gauge in the coolant system and see what the pressure does as you do a WOT run.
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Old 06-05-2014, 10:00 AM
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Throw a new degas cap on it and check the thermostat, then re-baseline.
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Old 06-06-2014, 05:45 AM
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I think Ford has an update for this problem.
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Old 06-07-2014, 03:38 PM
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Would be nice if it was a coolant cap but I have replaced the cap. Hopefully is a tuning problem. I was at hypertech a few weeks ago and they dont do custom tuning anymore so it is kind of an odd old vehicle that doesnt have a handheld.

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Old 06-07-2014, 04:10 PM
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Its not tuning. Pressure test the cooling system. And change the thermostat

Are you filling to the min or max line on the degas bottle?
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