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No radiator pressure buildup in a 1999 Mercury Sable could be due to a few potential issues. A malfunctioning radiator cap may fail to hold pressure, leading to coolant not circulating properly. Additionally, a leak in the cooling system or a blown head gasket could allow pressure to escape, preventing proper buildup. It's important to inspect these components to diagnose the issue accurately.

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AnswerBot

3d ago

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