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Q: OVERHEATS on 1995 Mercury Mystique

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
95 MERC OVERHEATS REPLACE THERM,REALYSWITCH,FLUSHE
RAD REPLACE FUSES IN BLACK BOX NOW FANS WORK GAGE WORKS
COLD AIR OUT OF HEATER AND STILL OVERHEATS GAGE GOES
TO RED
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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did you burp the system? you might have an air pocket. (the air pocke is what the temp sensor is reading or theres so much air that its not pressurizing)
I had same problem
Merc made a water pump with a graphite impeller in the water pump.
This impeller, with age and heat, will break apart.
it will not be noticed from outside because the belt is okay and still turning
the pulley.
Meanwhile-inside the pump, there is nothing turning the pump.
Without circulation your car just overheats, but nothing is putting low through the heater core inside the car.
I thought it might be a plugged heater core, but found the water pump problem.
Aluminum impellers available but extremely expensive.
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