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Old 12-23-2013, 05:59 PM
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WhatIsThisIDont WhatIsThisIDont is offline
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Join Date: Oct 2013
Location: Greensburg/Erie, Pa
Posts: 103
Re: Brown, boiling coolant

So the coolant in the reservoir was brown and overflowing, but the stuff in the rad is nice and green. Just did a block test and no exhaust gases were found.

I'm going to flush it out and replace the thermostat this week.

Can anyone think of a cause for boilover that doesn't involve head gaskets or overheating?
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