The thermostats on Mazdas are notorious for kicking out and causing the fans to either not initiate or go on without effective results. My Protege went through 3 before I got my Miata, and I learned how to change the thermostat when it went out the first time. Hopefully, there won't be a second time, but whenever the car overheats and I notice the fans don't come one, I always assume it's the thermostat, and that's always the cause. If you don't want to fix it yourself, take it to a dealer, they're very accustomed to changing thermostats in Mazdas, believe me.
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I believe the mazda protege has a separate thermoswitch to activate the radiator's fan. Perhaps the fan keeps blowing until the temperature is too low. Try replacing the fan thermoswitch. Just take care to put in tis place a thermoswitch of the same temperature range.
You need to fix the cooling fan immediately. You can start to check the paower input to fan first. If there is power input, now check fan for malfunction. For the newer car model, its fan equipped with temperature sensor. Just go check the sensor for malfunction also. Replace the defective parts to prevent this condition. The car with NO cooling fan can lead to worse condition even it can break your engine block.
You cant Ad a Bigger Rad if you Like Or Change Your Thermostat inside you Water Pump... but ..The Motor as to be on Specific Heat Temperature for Good Performance ....Try to change your Thermistor Delay Lower Heat Resistance to make your Fan start at low temperature.. You can not leave your fan on all the time... You may damage it Put Extras Fan on rad will help
is the coolant reservoir bubbling while engine is running??? if so, two things may be going on, 1st, one of the 2 cooling fans may not be working properly, usually the a/c condenser fan goes bad causing an intermediate over-heat and if the bubbling in the reservoir is happening then you now have a external leak in the cylinder head gasket from the over-heating causing a rough idle at times...you will need to have the head gasket replaced hope this helps.
I am realizing that the cooling fan in this car is very important. It has two in case you didn't notice. The driver side fan motor is bad in mine and the only result is poor air conditioner performance in stop and go traffic. It's fine at high speeds. I would think the thermostat is likely the culprit in your case, but if the fans are not working at all, you should get those replaced. The motors may be bad in both, which could definitely cause overheating. I've been researching prices and you should be able to get the parts for less than $100 each and installation is just a couple of bolts on each assembly.