How to PROPERLY WIRE UP A FAN???
#1
How to PROPERLY WIRE UP A FAN???
Okay my 89 RS 305 TBI Overheats The Fan Dont Work So I Want to Know How Can I Wire It To Automatically Turn On when it Reaches Anywhere from 180°to195°? Supplies i have are a 1.Fan 2.Connectors Power & Ground ...3.Fan Relays And 4.Fuses... 5.195° Thermostat Installed 6.New Radiator My Hoses & Water Pump & Heater Core are Also New Help Please Thanks...
#2
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Join Date: Jul 2009
Location: Kitchener, ON
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5 Posts
Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: How to PROPERLY WIRE UP A FAN???
Get a fan switch for a Buick GN and stick it in the passenger side head. Use it as a ground trigger to energize the relay which will turn on the fan.
#5
Re: How to PROPERLY WIRE UP A FAN???
A list of switches
https://www.thirdgen.org/forums/cool...ilability.html
https://www.thirdgen.org/forums/cool...ilability.html
#6
Supreme Member
iTrader: (2)
Re: How to PROPERLY WIRE UP A FAN???
Just get this ($16):
1. Thermostat Switch
2. Install that thermo switch properly and connect the triggered contacts to ground on one side and to the green/white wire on your factory fan relay on the other. (Red doodle)
If you have the dual fan, connect it to the green/white wire of the relay that triggers the passenger side fan (this is the Heavy Duty Fan). When this triggers, the ECM should also trigger the primary fan. (Blue Doodle)
If it doesn't trigger the other fan, then simple connect both of the green/white wires of the two fan relays together.
That should do it. You adjust the thermo switch to where you want it. I run this on my car and it works great.
Tips:
Insert the thermo switch temp probe through the radiator fins (not alongside it).
1. Thermostat Switch
2. Install that thermo switch properly and connect the triggered contacts to ground on one side and to the green/white wire on your factory fan relay on the other. (Red doodle)
If you have the dual fan, connect it to the green/white wire of the relay that triggers the passenger side fan (this is the Heavy Duty Fan). When this triggers, the ECM should also trigger the primary fan. (Blue Doodle)
If it doesn't trigger the other fan, then simple connect both of the green/white wires of the two fan relays together.
That should do it. You adjust the thermo switch to where you want it. I run this on my car and it works great.
Tips:
Insert the thermo switch temp probe through the radiator fins (not alongside it).
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#9
Supreme Member
Re: How to PROPERLY WIRE UP A FAN???
Here do this, don't use a radiator sensor version take the fan switch temp off the head
#11
Supreme Member