Question about 1998 Mercury Sable

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Over heating after running the car for about 30 minutes with the AC on it overheats. Have replaced the thermostat, the temp. control sensor also flushed the system. If you turn on the defrost it just blows cold air .If the water pump isn't functioning up to full potential would it cause it to overheat. JAC jayjac@twinvalley.net

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  • Anonymous Oct 26, 2008

    Mine is a '96, but I have had the same problem with it. The second vehicle, a Lincoln LS, overheats, as well. I will never again purchase an American-made vehicle.

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Yes. It could be several things: a)water pump defective b)radiator core blocked or grille restricted c)electric coolant fan inoperative or blades broken d)thermostat faulty e)radiator cap not maintaining proper pressure. Good luck!

Posted on Jul 14, 2008

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