Stock fans and harness, with fan controller

[915_Tahoe]

So I recently came across the stock fans and harness. Already got quoted from a speed shop to tune the ECU to activate the fans, which is around $150-$200. My question is, has anybody done this with a fan controller instead of the factory tune or is it even possible to do.

 

[915_Tahoe]

so no one has done a aftermarket fan controller with factory fan assembly and harness.

 

[Tonyrodz]

so no one has done a aftermarket fan controller with factory fan assembly and harness.

I THINK I read @iamdub did one on his S10-- when he had one. I'd think it's the same concept. Hopefully he'll chime in.

 

[Staggered 02]

I had it incorporated into my tune. Fans not installed in the truck yet. They have been color matched, ready and staged for install along with a replacement bigger radiator.

 

[iamdub]

so no one has done a aftermarket fan controller with factory fan assembly and harness.

I used a FAL VSC (#31165) on a single Ford Taurus fan in my S10. They're pricey (currently about $120 on Amazon), but work great. I got it for the variable speed feature that gradually ramps up the voltage to the fan when turning it on and then runs the fan at a reduced speed unless a higher speed is needed for additional cooling power. This greatly reduces the load on the battery and charging system, which I wanted cuz the Taurus fan is a pig.

If I were interested in getting other things tuned such as turning off rear O2 sensors, removing the top speed limit, reducing Torque Management, etc., I'd definitely get the tune cuz I'd get so much more out of it. Did the shop mention any additional changes or is it $150-$200 just to activate the fan circuit?

If cost is the main factor, you could just get the basic adjustable fan controller kits ($15-$40) for the stock fans. Just be sure the relay and wiring is sufficient for the fan. Don't forget to add a relay to be triggered by the A/C to turn on the second fan.

 

[Tonyrodz]

If cost is the main factor, you could just get the basic adjustable fan controller kits ($15-$40) for the stock fans. Just be sure the relay and wiring is sufficient for the fan. Don't forget to add a relay to be triggered by the A/C to turn on the second fan.

I have a set of stock electric fans with stock harness and relay bix for my 03--whenever that gets going--is there a way to use that stock harness and relays with that aftermarket switch, along with the relay for the ac compressor? Just in case I don't go through the pcm.

 

[915_Tahoe]

I used a FAL VSC (#31165) on a single Ford Taurus fan in my S10. They're pricey (currently about $120 on Amazon), but work great. I got it for the variable speed feature that gradually ramps up the voltage to the fan when turning it on and then runs the fan at a reduced speed unless a higher speed is needed for additional cooling power. This greatly reduces the load on the battery and charging system, which I wanted cuz the Taurus fan is a pig.

If I were interested in getting other things tuned such as turning off rear O2 sensors, removing the top speed limit, reducing Torque Management, etc., I'd definitely get the tune cuz I'd get so much more out of it. Did the shop mention any additional changes or is it $150-$200 just to activate the fan circuit?

If cost is the main factor, you could just get the basic adjustable fan controller kits ($15-$40) for the stock fans. Just be sure the relay and wiring is sufficient for the fan. Don't forget to add a relay to be triggered by the A/C to turn on the second fan.

They told me $100 for the license and $50 to activate the fans.
But a buddy of mine from work has a buddy that does that and he said get $200 and he can do what ever I want on the tune.

 

[915_Tahoe]

I used a FAL VSC (#31165) on a single Ford Taurus fan in my S10. They're pricey (currently about $120 on Amazon), but work great. I got it for the variable speed feature that gradually ramps up the voltage to the fan when turning it on and then runs the fan at a reduced speed unless a higher speed is needed for additional cooling power. This greatly reduces the load on the battery and charging system, which I wanted cuz the Taurus fan is a pig.

If I were interested in getting other things tuned such as turning off rear O2 sensors, removing the top speed limit, reducing Torque Management, etc., I'd definitely get the tune cuz I'd get so much more out of it. Did the shop mention any additional changes or is it $150-$200 just to activate the fan circuit?

If cost is the main factor, you could just get the basic adjustable fan controller kits ($15-$40) for the stock fans. Just be sure the relay and wiring is sufficient for the fan. Don't forget to add a relay to be triggered by the A/C to turn on the second fan.

I would like to try a fan controller, I have the stock fans and the harness. Can I adapt the fan controller to that. Wouldn't I just need to run the 1 wire to the controller, controller to thermo rod to radiator. And then run the 1 wire to ac wire.