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over heating after freeze

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Old 02-16-2013, 01:18 PM
Bratleediamond Bratleediamond is offline
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Smile over heating after freeze

My 87 6.9 radiator froze then thawed before starting. Now it over heats never did this before freeze can't find any leaks. New to dieasels but I love this truck would give up gf before truck any ideas why it is now over heating?
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Old 02-17-2013, 05:32 PM
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Sounds like your EG or PG radiator fluid is weak or is more water than glycol. You may have damaged your thermostate too. I bet its the thermostate or your loosing pressure. The radiator lid/cap needs to seal well, to maintain the water in a liquid state at elevated temperatures.

http://www.penray.com/images/95.011.pdf

Or it has too much EG or PG ratioed to water.

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Old 05-06-2015, 11:15 AM
Bratleediamond Bratleediamond is offline
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fixed

Pulled bat cable off and back on it reset andt runs fine now
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