How does a radiator fan get hot all the time?
The fan uses a relay in the fuse relay box under the hood. The relay has four terminals–one that is hot all the time, even with the key off. A second terminal becomes hot only when the key is on.
What should I do if my radiator fan is not working?
A blown fuse is no big deal, and changing one does not cost a lot of money. If your car’s radiator fan is non-functional, check your car’s user manual and locate the fuse for the radiator fan controller or the fan. The fan itself often uses a big fuse of around 50A, while there might also be a separate small fuse to the fan control module.
Why is the coolant in my radiator being pushed out when I?
When it opens, it is forced into an overflow tank, which by design will keep it contained until the engine cools and draws the coolant back into the main radiator. With no cap on, it simply expands until it overflows out of the radiator neck. What are top benefits that most seniors forget to claim?
When to turn on the radiator fan switch?
When the switch is turned on, the power is sent back to the relay, through the relay and to ground, which activates the switch. The fan switch should be left on except when cruising. When the vehicle comes to a stop and no air is moving through the radiator, the fan should be on.
A blown fuse is no big deal, and changing one does not cost a lot of money. If your car’s radiator fan is non-functional, check your car’s user manual and locate the fuse for the radiator fan controller or the fan. The fan itself often uses a big fuse of around 50A, while there might also be a separate small fuse to the fan control module.
What should the current be on a radiator fan?
Start by unplugging the wires. There will be two wires of positive and negative feed. They should be putting out around 12 volts of direct current. Use a voltmeter to check that there is current present. If there is not, you need to check both the wires and the fan relay to see if replacement is required. The fan relay will be under the hood.
Why does my radiator open when the engine is too hot?
You might notice a heavy spring in your radiator cap. The pressure necessary to compress that spring may be different from one vehicle to the next, but the idea is the same. It opens under pressure when the engine gets too hot, so that other weaker points in the system, ie gaskets, do not have to take the extra pressure.