it drains the coolant tank for some reason

1997 MERCURY SABLE
171,580 MILES
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MIKE1997
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i have a 1997 mercury sable it keeps draining the coolant tank every time i fill it and go for a ride it drains the coolant tank there are no viable leaks and it dont seem to be overheating what could it be?
Nov 5, 2011 at 12:30 AM
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BILLYMAC
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Hi you need to pressure test the cooling system. this will help you locate leaks that are not visible .this could be an internal eng leak or could be leaking on the exhaust and burning off. the best way is to pressure test the system
Nov 5, 2011 at 12:40 AM