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Moisture in the system. it may just be condensation or it may be more serious, as in a blown head gasket. If you are not loosing coolant, then you may not have a serious problem. If, however you are loosing coolant, you may have a blown head gasket. Either way, have it looked at by a professional. Serious engine damage can occur if it is coolant in the combustion chamber.

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18y ago

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