The cooling fan switch on our 94 Honda civic keeps going out. We have replaced it three times. It works for awhile and then the fan does not come on at the right temperature. What could cause this switch to keep failing?
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verify the plug of the fan and the fan switch located in termostat housing, if all are pluged in remove the conector of fan switch and short it with little piece of cable, if fan turn on replace the switch! it cost around $20. if the fan no turn on when short the conector verify if the fan conector have 12v if have it changer the fan motor if not check the fuse.
it looks like that you cooling fan is not working, check the fan when temperature is up if its not working than check the fuse for the cooling fan, if its ok than check the current at the fan end if you fund the current the fan is faulty replace the cooling fan.
Hi. Check the bottom of the radiator or on the side, as you also have a temperature-sending switch. The switch must reach a certain temperature before sending a signal on to the fan relay. The switch just screws into the radiator. If you would like to contact me again about this or other problems, feel free to do so. Bill ASE Master Technician
The temperature actuated switch is stuck in the ON position if the cooling fan(s) continue to operate after the engine has cooled down. Locate the defective sensor switch and replace it to eliminate the problem. This could be continuous or intermittent and either way if the switch is faulty it should be replaced.
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