I am not receiving any heat at all, heating gage is at normal.Mazda dealer said it was a bad thermostat, which was replaced twice. Still no heat.
All mazda 929 have this problem when the coolant level is dropped
the heater core has no fluid in it since it ts off of the engine block . hence it cannot recive any coolant to heat the car. the best way to fix this is bleed the system of air . when filling coolant squezze the return hose with the cap on the rad it will force fluid bact to the core and push the air out
once you do this a few times you will see the rad fluid droped fill it up and run the car . this should solve this problem
Get a complete cooling system flush and fill, you may need to also replace the heater core, blower motor, blower motor resistor, there is also possibility the thermostat might not have been properly installed or maybe wrong part, its not good but parts can be in wrong boxes with wrong part numbers.
The engine coolant must flow through the heater core. Small rad inside the car. And if it is not, no heat.
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