What happens if the cooling fan fails on a Mazda?
The cooling fan module can fail causing the fan to either run constantly, or not operate at all. If the fan runs continuously, the engine may not warm up properly, and if the fan does not run, the engine may overheat. Mazda has a voluntary recall on model years 2002-2003 to address this concern.
What to do if your cooling fan won’t turn on?
Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. The computer looses power with the key off and the same applies to the coolant temperature sensor.
Why does my car fan keep running even when the car is shut off?
The fan continues to run even after the car is shut off and all the while it is running. This has drained the battery on many occasions.
When does a computer turn on a cooling fan?
When the temperature exceeds a specific value — usually 215 degrees Fahrenheit — the computer will turn the fan on. The operating components in the cooling fan circuit include the cooling fan fuse, relay, coolant temperature sensor and the computer.
Why are the cooling fans not working on my car?
1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
What to do if your Mazda radiator fan is not working?
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What are the symptoms of a bad cooling fan relay?
1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
How does the cooling fan relay work on a car?
The cooling fan relay is the relay that controls the engine’s cooling fans. When the correct parameters are met, a temperature switch or the computer will activate the relay, which will allow power to the fans. The relay will usually be activated once it is detected that the vehicle’s temperature…
What happens if the cooling fan does not work?
The cooling fan module can fail causing the fan to either run constantly, or not operate at all. If the fan runs continuously, the engine may not warm up properly, and if the fan does not run, the engine may overheat.
What should the radiator fan be running at?
The fan continues to run at its maxiumum speed, regardless of the engine temperature. I allowed the car to run today from cold to just above 80 deg. C before sutting it off today.
Why does my Mazda MPV engine not start?
Strong crank but no start. Often will start after awhile. Had to tow it and it stared right up after the car was dropped at the shop. Thought it was the fuel pump but mechanic said it was distributor. Another mechanic suggested a sticky air valve that causes important sensor to misread conditions.
The cooling fan module can fail causing the fan to either run constantly, or not operate at all. If the fan runs continuously, the engine may not warm up properly, and if the fan does not run, the engine may overheat. Mazda has a voluntary recall on model years 2002-2003 to address this concern.
How to fix radiator fan not coming on / overheating?
Mazda 626 + more! – YouTube How to fix radiator fan not coming on/overheating! Mazda 626 + more! If playback doesn’t begin shortly, try restarting your device.
What was the problem with my Mazda 6?
Turns out this is a very common problem with all first generation Mazda 6 cars: The Fan Control Module (FCM) has a high failure rate. I replaced my FCM and it solved this problem.
The cooling fan module can fail causing the fan to either run constantly, or not operate at all. If the fan runs continuously, the engine may not warm up properly, and if the fan does not run, the engine may overheat.