Now take the power wire from your fan and connect it to the wire that is going through the firewall.
Wiring diagram for cooling fan relay switch.
87 red wire connects to the positive wire on the electric fan.
30 other red wire needs constant 12 volt power from the battery.
The first part of the installation is to install the electric fan to your radiator and remove the mechanical fan.
Https amzn to 377klrp those fans fit perfect on 68 72 gm a body cars bu.
86 gray white wire goes to the ignition switch.
Hayden flex a lite or perma cool brands can provide a 12 volt output when activated.
Attach the dash side of the 16 gauge wire to the switch with a female blade terminal and mount the switch to the bottom of the dash.
Use a good ground such as the steering column or the dash mount bolt at the kick panel for the ground.
A relay kit our part number ccfkrl will include everything you need to properly wire up your electric cooling fans with the exception of additional wiring needed to complete all of the circuits.
How to wire a relay for a radiator fan by don bowman.
Get the 10 gauge wire and place it through the hole in your fire wall.
This will be the wire that connects your switch to your fan power wire.
Today roy shows you guys how to wire a relay and a cooling fan circuit.
Check out part 1 on how to wire the fans up this video gives you an idea on how to make them work.
Today roy shows you guys how to wire a relay and a cooling fan circuit.
Most stand alone adjustable thermostats i e.
Just an idea on how to wire up electric cooling fans for your vehicle cooling fans.
Suggested electric fan wiring diagrams suggested primary cooling fan single speed on off using 12 volt switching devices only for primary activation note.
Relays shown in these diagrams can provide options.
Run a ground wire on the other terminal of the switch.
85 black wire.