Question about 2002 Mazda Protege
When you drain & refill a cooling system air is often traped in places like the heater core. If so the coolant level will appear full before it really is. To burp you need to add coolant till full or just over. Adjust the heater control to MAX heat. This will let full force of water pump to push air out of heater core. Fan speed dose not matter. Next start the motor & let it idle. As it warms up the thermostat will begin to open and close. This is when you should see fluid level drop as trapped air is pushed from system ( add fluid as needed). If this is working right you should fell quite hot air coming from heat vents. If air doesn't seem hot enough adding RPM by pulsing gas pedal should do the trick. And that should do it.
Posted on Jul 14, 2013
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Posted on Jan 02, 2017
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