Whats this on my Hyundai thermo fans??

[pisso001]

Hi all,

Just about to wire my thermo fans up but this thing is bolted to one of them and only wired to one fan..

Looks something like this:


I think im going to just leave it out but if i need it please let me know...

Thanks,

Pisso.

[pisso001]

The sliver box thing with the two yellow wires coming out of it...

[mrshin]

Looks a lot like a fan resistor for running the fan at a slower speed. If you don't intend to use it, remove it.

[pisso001]

Oh right... That sorta makes sence.. Hmmm might use it one one fan.. So do i just hook it up to the negative and positive wires on the fan i want it on?

Thanks heaps,

Pisso.

[cri_ag]

mine had that thing two, i ditched it.

[pisso001]

Yep i ditched it... Anyone know how to put an over ride switch on the thermo fans?

[Kebin]

Anyone know how to put an over ride switch on the thermo fans?

ahhhh depends how they are wired? Are they traditionaly wired via a relay triggered by coolant temp sender?
if so just back tap a wire running through a toggle switch connected to ground. that will override the temp sender.

[pisso001]

Yeah ive wired them like you said.. So i put the override switch wire on before the temp sender, then to ground?

Thanks,

Pisso.

[Kebin]

yeah the temp sender is a switch itself which switches ground to trigger the relay. it is grounded through its thread/housing then sends the ground signal through the single wire to the relay so effectively you can duplicate the same thing with a ground wire running through a toggle switch to your relay. just splice it into the temp sender wire etc. and then you have a bypass

[pisso001]

Sweet.. Thanks for that.. Very helpfull..