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Old 09-08-2010, 07:27 AM
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Join Date: Feb 2009
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I'd guess that you need a thermostat then. I've heard that there is a material inside of thermostats that expands and contracts due to heat (wax? or spring?), and if it isn't working in boiling water, there probably wouldn't be a difference with antifreeze? But how long did you keep it in the water? Engines take some time to warm up coolant.
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