Wiring Diagram For Cooling Fan Relay Switch

Run a ground wire on the other terminal of the switch.

Wiring diagram for cooling fan relay switch.

The first part of the installation is to install the electric fan to your radiator and remove the mechanical fan. Today roy shows you guys how to wire a relay and a cooling fan circuit. Just an idea on how to wire up electric cooling fans for your vehicle cooling fans. 85 black wire.

How to wire a relay for a radiator fan by don bowman. Relays shown in these diagrams can provide options. Now take the power wire from your fan and connect it to the wire that is going through the firewall. Https amzn to 377klrp those fans fit perfect on 68 72 gm a body cars bu.

So now we have a wire that goes through the engine bay to the cabin of your car. 30 other red wire needs constant 12 volt power from the battery. This will be the wire that connects your switch to your fan power wire. 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.

Most stand alone adjustable thermostats i e. 87 red wire connects to the positive wire on the electric fan. Get the 10 gauge wire and place it through the hole in your fire wall. Use a good ground such as the steering column or the dash mount bolt at the kick panel for the ground.

86 gray white wire goes to the ignition switch. Check out part 1 on how to wire the fans up this video gives you an idea on how to make them work. Suggested electric fan wiring diagrams suggested primary cooling fan single speed on off using 12 volt switching devices only for primary activation note. Today roy shows you guys how to wire a relay and a cooling fan circuit.

Hayden flex a lite or perma cool brands can provide a 12 volt output when activated.