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Mazda 626 Radiator Fan

Culprits behind Mazda 626 Radiator Fan Problems

A faulty radiator fan could mean big trouble. Without any air flow to take the heat away from the radiator, overheating is a definite possibility. Once you notice that your temperature gauge is giving high readings, be sure to inspect your radiator fan immediately for any problem. Read on to learn how to troubleshoot issues with the Mazda 626 radiator fan.

Radiator fan does not turn on

If the radiator fan does not move even after switching the engine on, this is probably because no electricity is getting to the fan. To see if the fuse had burned out open up the fuse box of the Mazda 626; you can consult a manual if you're having trouble finding the fuse. Next, inspect the radiator fan relay to see if it is still working. If the problem lies with either the fuse or the relay, have this replaced immediately to solve the problem.

Broken or damaged wires are another reason why electricity is unable to get to the fan. You can test out the wires with a voltmeter; if there's no reading given off by the meter, then the wires are indeed problematic. Inspect the wires that connect the radiator fan to the engine harness and check if any wire is damaged. Replace the damaged wire/s to fix the problem.

The problem may also lie with the fan switch. The fan switch activates the radiator fan when the engine reaches the appropriate temperature. To determine whether or not the switch works, remove the switch from the harness and connect the two harness contact points with a wire. If the fan turns on, then the fan switch is indeed faulty. Replace it in this case.

High temperature readings despite a running fan

Though it may not be evident at times, malfunctioning radiator fans will occasionally run a little slower. This makes them unable to circulate enough air through the radiator to cool down the engine compartment. Listen for any noise in the fan; a grinding noise could mean that the bearings are shot. The fan motor could be faulty as well, so test it out using a voltmeter. You should get a reading of 12 volts across the motor-any less means that the current flow is no longer efficient.

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  • Keeping Your Engine Cool Some with Mazda 626 Radiator Fan Maintenance Tips

    The radiator fan is in charge of circulating air around the radiator and bringing heat out of the engine compartment. This helps cool down the engine significantly. Indeed, taking care of the radiator fan is necessary to make sure that your engine keeps running perfectly. For more tips on Mazda 626 radiator fan maintenance, read on.


    Clean the radiator fan.


    Dirt, debris and gunk buildup can hamper the radiator fan's operation and clog the radiator. Keep this from happening by cleaning the fan regularly. Take the fan out carefully and wipe it clean with a rag and degreaser. Take care not to damage or bend the fan in any way; you might end up needing to replace the whole thing.


    Inspect the radiator fan regularly.


    The best way to know if something is wrong with your radiator fan is to inspect it yourself. While warming up your car, have a look at the fan to see if it is running normally. Observe if there is any wobble in the fan's movement or if the movement speed is adequate enough to keep the engine cool. As the fan is running, try to listen closely for any funny sounds; scraping and clunking sounds are signs of a possible radiator fan failure.


    Keep the electrical system in order.


    For Mazda 626s that make use of an electrical radiator fan to help cool the engine, proper upkeep of the electrical system will ensure that the fan will continue to operate properly. Check the fuse and the fan relay periodically to determine if they are still functioning. Inspect the wires and look for any sign of damage or corrosion that could have electricity leaking out onto the engine. Have a look at the electrical connections as well and make sure that they are always secured.


    Replace the radiator fan and other related components when necessary.


    When you suspect that failure is imminent for the radiator fan or any other related component, it will make more sense to replace these parts rather than try to find ways to fix them. This is especially true for components that have been operating for a long time and have been seriously weakened because of wear and tear. No amount of repair can reverse the effects of time; don't hesitate to replace the radiator fan if necessary.