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Do you need to flush the radiator on a 1991 Mercury Sable to change the thermostat?

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βˆ™ 2015-07-15 18:38:59

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No, you do not necessarily have to but it is a good idea. Have the entire system flushed. Replace the thermostat, bleed the system. I would also replace all coolant hoses at this time unless you have done so before. Your car is 14 years old and although they may look OK, it is just smart to replace now before you are stranded by a hose bursting. Be sure and replace the heater hoses also. Refill the system with a 50/50 mixture of anti-freeze and distilled water.

2015-07-15 18:38:59
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