my radiator fan does not come on and car over heats
Sep 4, 2008 at 11:44 AM
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ZACKMAN
CERTIFIED EXPERT
4,202 POSTS
Three things to check.
Check the fan motor. Use jumper wires, feed 12V directly to the motor. If it works, then check the relay. Try swapping it with another similar looking relay. Then check coolant temp sensor (sometimes it is called radiator fan switch).