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How do you know when the heater core needs replaced in a 1998 mercury grand marquis?

Updated: 10/21/2022

Wiki User

∙ 16y ago

Best Answer

If it is leaking it needs replacing. If you have no heat and the inlet heater hose is hot and the outlet is cool, it is stopped up and may need replacing, if it cannot be flushed out.

Wiki User

∙ 16y ago

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Q: How do you know when the heater core needs replaced in a 1998 mercury grand marquis?

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How do you know when the heater core needs replaced in a 1998 mercury grand marquis?

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