Honda City 2003 iDSI Radiator Fan

**restituto** · February 28th, 2016 10:36 PM

My City 2003 has two radiator fans. The 2nd radiator fan on the left side (driver side) sometimes would not function. This result to inefficient aircon cooling on the cabin. Would normally the 2nd radiator fan should work when the aircon compressor kicks in? I only knew the problem when I ask a friend mechanic why the aircon is not cooling well. He checked the cooling fan while the aircon is on and we found that the other fan is not working....might be stucked up or whatever. He tried to tap lightly with a small hammer the cooling fan frame/assembly and the fan started to work. In this regard, may I ask your advice or opinion if there's really a need to replace the cooling fan assembly or it just needs cleaning or maybe there are other defects that contributed to its malfunctioning.

By the way, I also noticed one time that the said fan is rotating but at slower speed. If the fan motor needs to be replaced or relay, magkano kaya ang price nito sa casa and outside parts dealer? Thank you for any info you can share. Regards to all.

**StockEngine** · February 28th, 2016 11:31 PM

most mechanical parts do fail. the fan has a bearing that probably isn't good anymore. a replacement is probably the best course.

**dr. d** · February 29th, 2016 01:00 AM

Originally Posted by restituto

My City 2003 has two radiator fans. The 2nd radiator fan on the left side (driver side) sometimes would not function. This result to inefficient aircon cooling on the cabin. Would normally the 2nd radiator fan should work when the aircon compressor kicks in? I only knew the problem when I ask a friend mechanic why the aircon is not cooling well. He checked the cooling fan while the aircon is on and we found that the other fan is not working....might be stucked up or whatever. He tried to tap lightly with a small hammer the cooling fan frame/assembly and the fan started to work. In this regard, may I ask your advice or opinion if there's really a need to replace the cooling fan assembly or it just needs cleaning or maybe there are other defects that contributed to its malfunctioning.

By the way, I also noticed one time that the said fan is rotating but at slower speed. If the fan motor needs to be replaced or relay, magkano kaya ang price nito sa casa and outside parts dealer? Thank you for any info you can share. Regards to all.

is that fan not functioning because it's kaput, or because the thermostat says not to?

**restituto** · February 29th, 2016 10:10 PM

Originally Posted by dr. d

is that fan not functioning because it's kaput, or because the thermostat says not to?

The fan works but not normal. Just like the other day, I tried to switch-on the aircon and the fan did not start right away. I tried to tap fan frame with the handle of a screw driver several times until it slowly turns. I kept on tapping the frame until it runs at normal speed. Is the function of the relay is just to switch on and off the fan motor when the engine temperature rises at certain level that is set to activate? If the relay function is just to switch it ON and OFF, the rotation should be immediately at full speed upon start up. However, I observed occurrence of slow and won't start immediately. Can we conclude its the fan motor that is defective or the relay?

**abril** · February 29th, 2016 10:52 PM

replace the fan. if the construction of the honda city is the same as the crv (mine is 2004), the armature is only printed circuit board and gets worn out after some years and cannot be repaired. i have replaced my fan twice already.

**rodetor** · March 1st, 2016 03:34 AM

Originally Posted by restituto

The fan works but not normal. Just like the other day, I tried to switch-on the aircon and the fan did not start right away. I tried to tap fan frame with the handle of a screw driver several times until it slowly turns. I kept on tapping the frame until it runs at normal speed. Is the function of the relay is just to switch on and off the fan motor when the engine temperature rises at certain level that is set to activate? If the relay function is just to switch it ON and OFF, the rotation should be immediately at full speed upon start up. However, I observed occurrence of slow and won't start immediately. Can we conclude its the fan motor that is defective or the relay?

Most commonly turns out defective is the fan motor and not its relay.[emoji4]

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