Radiator fan

[Curry]

I searched and found a few topics about this but nothing conclusive. Maybe someone can give me some insight.

So my main radiator fan was not working. The condenser fan is blowing non-stop as soon as ignition is on.

We figured the fan was toast so we replaced it with a slimmer fan just in case. The old fan when connected directly to the battery worked perfectly so it wasn't that.

So does that mean either a relay is bad? or the sensor under the radiator is bad?

Can I just hook up the fan to turn on with the ignition? There are a few resources out there on how to do it but what would you guys recommend? i.e. Relay type, wiring etc etc.

Anything I can do to get the condenser fan to operate normally again?

[quieter]

i would rewire it, its maybe shorting somewhere

[dorichimpsak]

Mine just went bad and it was the relay contacts on the fuse box. I wired mine to a switch for now. Unplug the sensor at the bottom of the radiator to see if the fan kicks on or not.

[Curry]

Just tried that.

I disconnected the sensor. Stuck the new fan wires into the old socket and nothing. So I guess a bad relay?

My friend jumped two ports for the FAN 1 Relay in the big fuse box. When he did that It sounded like TWO relays clicking in the smaller relay box...

[Curry]

Going to try doing some continuity tests today to see if I can find the trouble spot. If not I may just end up wiring up one to a switch in the cabin. But I would still need to figure out how to get the ac fan to run normally...

came across this

viewtopic.php?f=10&t=6967&start=15

[Rpz123isme]

The ac fan might be on if the connectors on your ac lines by the fire wall are making bad contact or disconnected.

[Curry]

No luck finding out why the fan doesn't kick on.

I wired the radiator fan to a relay which goes to a switch in the cabin. I guess this will do for now until I can figure it out.

I'm considering doing the same thing to the AC condenser fan as well but I don't know yet.

[Arky]

Could the water temp sender at the bottom of the rad be faulty ? The temp sender under the intercooler, sends its signals to the dash only, right ? My two cents worth. Mine is a st165.

[Curry]

The fan should turn on and run when that sensor is disconnected so at this point it wouldn't make a difference if it works or not.

I left it unplugged while I was testing.