Can someone tell me what might cause the radiator fan to never come on. I left my car runnig for about 13 mins strait and nothing? Any ideas would be great.

 

Well the story went that when i had my stock dx motor in still, this is a 92 civic hatch, it NEVER came on at all. Stationary, idle whatever, it sucked. I did a obd1 ls engine swap, and so far the fan still doesnt come on. Do i have to reflush the radiator and all that good stuff? Any help would be appreciated

 

check the relays

 

bad ground.

 

I checked the relays and there fine. I manual made the relay engaged and the fan turned on. When your talking about the ground, what groud are you talking about? The fan ground? Thanks for your alls help.

 

Temp switch, the one for the fan.....there is one for the guage and there is one for the fan.....I am not sure which is which.