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Front Radiator fans?

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YOUR RESEARCHFront Radiator fans?

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POST 1 / ORIGINAL POSTEROriginal post

I have noticed that one of my radiator fans seems to be inoperative. The other night I parked my car in the driveway near a puddle of water (the result of an earlier spring shower) and noticed that the airflow from the drivers side fan was rippling the standing water but the passenger side was not blowing any air. Last night when I got home I checked the output of both fans and this time the passenger side was blowing but not the drivers side. Do both of these fans turn on and off together? Or are they somehow regulated to only turn on and off as needed dependent on which radiator is warmest?

POST 2Original post

The radiator fans are operated as needed in two stages. Here is the description of how they trigger: Since both are triggered from the same source they should come on together. A quick test is to turn on the AC - both fans should come on to stage two (fast). If they do not then you should have the car checked. Most common failure I have seen is the ballast resister on one side - but that would only affect one side (to my knowledge).

POST 3 / ORIGINAL POSTEROriginal post

Thanks Loren for the operational description and troubleshooting guidelines.

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