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Ive recently replaced the thermostat and flushed the cooling system on my Saab 9-5, but last week it over heated and coolant leaked from the expansion cap. Why?

April 26, 2017cooling flushed heated last week Saab system thermostat

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Ive recently replaced the thermostat and flushed the cooling system on my Saab 9-5, but last week it over heated and coolant leaked from the expansion cap. Why?

1 Answer

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A. It could be a faulty valve on the expansion cap that is to blame, so try changing this simple part first. If the problem persists, it may be a blown head gasket – get this checked out at a garage before the engine is damaged. FORD FEAR Q.