How do you add a toggle switch to a radiator fan?
Slide heat shrink over them and use the heat gun over the heat shrinks. Use a power drill to make holes at a location that you think is suitable for the switch. Now manually screw in a toggle switch. Attach the electrical connectors to the switch. Now test the switch by reconnecting the battery.
How do you connect a fan wire to a switch?
Connect the fan wire to two diagonal connectors of switch (on right side at top and left side at bottom). Connect the other wire coming from original cut to one of the center terminals of switch. Connect the new fused wire to other center terminal.
How does the coolant temperature switch work on a car?
If it doesn’t, and you have a domestic vehicle; the coolant temperature switch is a normally open type that stays open until the coolant reaches its set temperature. When it reaches that temperature; the switch closes and turns the fan (s) on. To check this, unplug the single wire connector and, using a jumper wire, ground it.
When do you turn on the engine cooling fan?
So, extra cooling is not needed, when a cold engine is first started. As a result, the engine cooling fan, does not come on until the engine reaches, normal operating temperature. The fan will then cycle on and off as needed, to maintain the proper coolant temperature.
When do you know it’s time to replace your fan belt?
If you find your fan belt is no longer attached to your engine, or is lying on the ground somewhere, that is definitely a sign that it’s time to replace your fan belt! When experienced individually, these signs do not always indicate that your fan belt or serpentine belt needs to be replaced.
Slide heat shrink over them and use the heat gun over the heat shrinks. Use a power drill to make holes at a location that you think is suitable for the switch. Now manually screw in a toggle switch. Attach the electrical connectors to the switch. Now test the switch by reconnecting the battery.
How does a cold engine switch work on a fan?
That sender contains a switch, rather than a variable resistor, and is either on or off. A cold engine will provide an open circuit, and no current can flow from the sender to the fan relay. Once the temperature rises to a set level, in this case about 185 degrees, the switch closes.
How does a coolant temp sensor work on a fan?
Coolant Temp Sensor – LH head. I have used a t-stat housing mounted fan switch with excellent results. Sounds like you hooked up a gauge to a temperature switch. That’s a problem right there. A gauge won’t run off a temperature switch. Also that temp switch supplies the switchable ground connection to the fan relay.