Thread: Coolant System Mysteriously Pressurizing
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Old 03-25-2009, 06:51 AM
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Jim Doak Jim Doak is offline
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Location: Sandy, UT
Cobra Make, Engine: FFR with a 345-horse 302 Crate Engine
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I agree with Rick Lake, sounds like a leaky head gasket. My first engine's cooling system would stay pressurized for days after being shut down. It would also puke coolant immediately after shutdown when warm. A leaking head gasket was pressurizing the cooling system with combustion gases.

Changed the head gaskets and fixed that problem.
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