Radiator fan stays on all the time


Asked by Jul 01, 2010 at 10:19 AM about the 2003 Mazda MAZDA6

Question type: Maintenance & Repair

The radiator fan stays on all the time, it starts as soon as you start the car.and I am pretty sure it doesn't ever go off.  My Mazda is a 2003 model.  I have had some problems with the relays but I am pretty sure that they can be eliminate at this point.  What else should I check for.   Any help on this would be really be appreciated, I am afraid that the fan will not last very long at the rate it is running.  One other note, we also have a 1993 protege, that fan only comes on in the very hotest of weather or when you are in heavy traffic.  Again thank you for any help.


4 Answers


As for the 03 check for a bad coolant temp sensor or a stuck relay. The 93 if the fan does not come on with the ac then the high side switch most likely will be bad...

3 of 3 people found this helpful.

Check Mazda dealer for a recall on the fan module located on or near radiator. They were known to just flake out and then to continue to run runing battery down.

1 of 1 people found this helpful.

I finally got with someone at Mazda, they said that there was a problem with the relay you mentioned, and that there was a recall on it and that they may cover it. Thank you for your help. Will let you know what comes of it. Greg

Why my fan do not stop. Mazda 3 sedan 2008.

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