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Old 08-16-2019, 09:29 AM   #7
DHZIEMAN
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Join Date: Dec 2016
Location: Sunrise Beach, Mo
Posts: 439
Default Re: Radiator overflow

Climbing a hill drives heavier load on the combustion chambers on all four cylinders. With this situation as you describe, I am leaning to a leaky head gasket, and possibly a cast crack someplace. Signs the head gasket is leaking that can be visible from the engine are a slight amount of creosote type ooze at the head gasket. You are kind of describing, to me, that the engine is pumping out the coolant. I am sure there are some tests that others can suggest to get the reason there is pressure forcing out liquid.
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