Cooling Fan????

gsrauto98 · Post by **gsrauto98** » Fri Apr 17, 2009 10:39 pm

I can not figure out why my fan is not coming on. The fan itself works because i jumped it to the battery and it flipped on. Its not a fuse or relay and i just replaced the temp control sending unit? So if anybody has any ideas please let me know. All help is appreciated.

v-tecivic · Post by **v-tecivic** » Sat Apr 18, 2009 12:27 am

does your lower radiator hose get hot? might be a thermostat.

gsrauto98 · Post by **gsrauto98** » Sat Apr 18, 2009 12:32 am

i'll have to check? the thermostat shouldn't make the fan not to come on though?

5thgen · Post by **5thgen** » Sat Apr 18, 2009 6:52 am

There is a fan thermo switch on the thermostat housing. Once this switch "triggers" it connects and sends ground to your fan relay, switching the relay over to give power to the fan.

There is a green wire and a black wire from the switch.....connect those 2 wires (without unplugging anything...and with the ignition on). If the fan kicks on...then your thermo switch is bad. If it doesn't kick on, you either have a bad wire or bad relay somewhere.

gsrauto98 · Post by **gsrauto98** » Sat Apr 18, 2009 1:42 pm

thanks and i will deal with this when i get home today

gsrauto98 · Post by **gsrauto98** » Sun Apr 19, 2009 12:46 am

I replaced the fan switch and it still doesnt turn on, im just going to wire it to a switch

5thgen · Post by **5thgen** » Sun Apr 19, 2009 1:28 am

Did you run a ground to that green wire coming off the switch?

gsrauto98 · Post by **gsrauto98** » Sun Apr 19, 2009 1:29 am

5thgen;176078 wrote:Did you run a ground to that green wire coming off the switch?

No i didn't

5thgen · Post by **5thgen** » Sun Apr 19, 2009 1:32 am

I would try that with the ignition on. Just touch wire to a razorblade (ground the other side of the wire) and push the blade into the green wire. That switch is the ONLY thing that turns the fan on/off.

gsrauto98 · Post by **gsrauto98** » Sun Apr 19, 2009 1:42 am

I will go try that in a minute, thanks man