kaichun5586

My cooling fan doesn't turn. I think it's either my thermostat or fan switch. I am not sure where my fan switch is. Is it number 14 in the diagram??




edit: i located the fan switch, it's 11.

89SIHATCH?

well unplug it and run direct power to it and see it it turns on if it does then look into a new fan switch.

kaichun5586

I am going to jump the fan switch to see if the fan turns.

Both the upper and lower radiator hoses are hot after running. Does not mean it is not my thermostat? Or does it simply mean my thermostat isn't stuck closed?

imported_InVaDeR_HB

The fan doesnt really kick in unless it gets hot enough, maybe thats why?

kaichun5586

Oh, i forgot to say....the fan doesn't turn and the engine overheats. It's not my temp guage, the engine actually gets very hot and starts to steam.

Can't believe i forgot to mention it.

zeeman

iTrader: (1)

did the fan work with the fan switch jumped?
If so, its the fan switch. If not, then try putting 12v directly to the fan, if it doesn't work, the fan is pooched.

imported_plzbeleiveit

I had same problem. get the postive and ground wires for the fan and touch it to battery if it comes on then its probally just a fuse or somthing.

imported_bigdaddygofast

This happened to me, check the fan fuse. Mine was blown.

kaichun5586

I replaced the under-dash fuse #17 and also jumped the wire. The fan turns when the wire is jumped. I replaced the fan switch with a brand new one.

However, after installing the fan switch the fan still did not turn and this time the lower rad hose is cold. Maybe the thermostat also blew?

I am gonna go get a thermostat from crappy tire and see what happens after installing that.

Cynikal.Mindset

also check the relay

kaichun5586

which relay?

edit* radiator fan relay?

Cynikal.Mindset

yusss

kaichun5586

if my fan turns when i jump the fan switch, do i still need to check the relay?

I just replaced the thermostat, my lower rad hose is still cold!
Maybe the thermostat i bought was crap? I am waiting for my car to cool down to get another one.

kaichun5586

Okay I fixed everything now.

For archive purposes, I will state the following:

I replaced under-dash #17, it was burnt. Without it, the fan would not turn even if you jump the switch.

I reinstalled my fan switch (ECT, #11). I forgot to put in the crush washer (#14) the first time. Maybe that's why it screwed up.

I replaced the thermostat I bought with a fail-safe type from Canadian Tire. It works because both upper and lower rad hoses get hot.

I also drained, and filled the engine coolant while I was replacing those parts.

If the fan turns when you jump the switch (ECT) then it is not the relay. I came to this conclusion from studying the Helm's circuit diagram.


The engine runs fine and fan kicks in now. Haven't driven the car, but it should be okay.