to all civic 2001-2004 owners (radiator fan on/off questions))

**milesaldrich** · June 9th, 2011 11:41 PM

Im just curious with my radiator fan. In the morning, the fan will switch on after 15 mins for only 15 seconds then switch off. Is this normal?

15 minutes before my fan will switch on?
then it will only switch on for 15 seconds...
What do u think?
Please share your experience with your cars...
Thanks in advance!

**jaffey** · June 9th, 2011 11:49 PM

I think it's normal as long as it will automatically turn on while the car is moving.

**milesaldrich** · June 10th, 2011 12:28 AM

during idle po yang 15 minutes first start in the morning. then on yung fan for 15 seconds tapos of ulit. thanks po sa reply

**tip_tipid** · June 10th, 2011 02:35 AM

The On and Off condition is triggered by a thermal switch located just after the thermostat in the return path of the coolant to the radiator. the radiator fan will be turned on until the coolant cools enough to cause the thermal switch to open the electrical contacts within the switch.
So what you have is a normal occurence. Nothing to worry about.

**milesaldrich** · June 10th, 2011 07:08 AM

tip_tipid thanks for the explanation but for me, I think it should be more than 15 seconds when my fan will on. I thought of a bad thermo switch. i owned an ek years ago and my fan will on more than 15 seconds when it turns on.

**junerski** · June 10th, 2011 01:10 PM

normal lang yan... nag-aautomatic ang fan mo... pag-on ng auto sa umaga, talagang hindi pa aandar ang fan dahil hindi pa naman umiinit ang engine bay mo.

**[archie]** · June 10th, 2011 05:26 PM

tumataas ba temp or nagbabawas ng tubig? usually 30 secs andar rad fan.

**milesaldrich** · June 12th, 2011 04:56 PM

tumataas siya e. from less than 1/2 dati temp but now sometimes after running for 4-6 hours then high rev. minsan kasi nirekta fan but i noticed na sobra baba naman temp ko. imagine 1/5 of the gauge sobra baba.