# 2000 Ford Focus radiator fan

**URL:** <https://community.cartalk.com/t/2000-ford-focus-radiator-fan/127009>\
**Category:** Maintenance/Repairs\
**Tags:** focus, ford\
**Created:** [October 18, 2018, 4:15am UTC](https://community.cartalk.com/t/2000-ford-focus-radiator-fan/127009 "2018-10-18T04:15:33Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![roger31](https://avatars.discourse-cdn.com/v4/letter/r/f0a364/32.png) [@roger31](https://community.cartalk.com/u/roger31)\
**Post date:** [October 18, 2018, 4:15am UTC](https://community.cartalk.com/t/2000-ford-focus-radiator-fan/127009/1 "2018-10-18T04:15:33Z")

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radiator fan does not come on. i have replaced sensors an when i unplug cooling senor on thermstat housing fan comes on. i like the car so i would like to fix it. thank u

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**Author:** ![Buzzmeok](https://avatars.discourse-cdn.com/v4/letter/b/46a35a/32.png) [@Buzzmeok](https://community.cartalk.com/u/Buzzmeok)\
**Post date:** [October 18, 2018, 3:07pm UTC](https://community.cartalk.com/t/2000-ford-focus-radiator-fan/127009/2 "2018-10-18T15:07:47Z")

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Have you tested out the fan it self?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [October 18, 2018, 3:11pm UTC](https://community.cartalk.com/t/2000-ford-focus-radiator-fan/127009/3 "2018-10-18T15:11:14Z")

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Have you checked the fan relay?

Tester

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**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\
**Post date:** [October 18, 2018, 3:14pm UTC](https://community.cartalk.com/t/2000-ford-focus-radiator-fan/127009/4 "2018-10-18T15:14:14Z")

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> [@roger31](#):
>
> when i unplug cooling senor on thermstat housing fan comes on.

Fan motor OK.

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**Author:** ![TwinTurbo](https://avatars.discourse-cdn.com/v4/letter/t/8baadc/32.png) [@TwinTurbo](https://community.cartalk.com/u/TwinTurbo)\
**Post date:** [October 18, 2018, 4:04pm UTC](https://community.cartalk.com/t/2000-ford-focus-radiator-fan/127009/5 "2018-10-18T16:04:11Z")

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Well, if you unplug the sensor connection and the fan runs then that rules out the fan and relay. That leaves a couple possibilities. One being it’s not getting hot enough to need to run. There’s an air bubble in the system or the sensor is no good.

What does your engine temp gauge read? Is it in the normal range when hot?  
Do you get hot air from heater?  
If temp gauge reads low but engine is hot, the sensor may be being fooled by an air bubble in the cooling system. They tend to settle at a high point, often where the sensor is located.  
If the gauge reads normal range and you get hot air from heater, the replacement sensor may be bad.