Efficient Cooling: Motorcraft SW5174 Radiator 🌬️ Fan Switch for Optimal Engine Temperature Regulation Review

As a hesitant automotive enthusiast, I tested this switch after installing it on my performance car. As a result of my tests, I determined that this switch was not compatible with my car's electrical system, causing several issues with my radiator fan. Although it may work well for other vehicles, I cannot recommend it for those with high-performance cars.

I used this sensor to replace the PCM temp sensor on my 2000 Explorer. It fits snugly in and replaces the sensor on the passenger side of the thermostat housing. It doesn't screw all the way into my car like the stock sensor, but it's solid and doesn't leak. It has been installed for several months and works perfectly.

Corrected incorrect readings. It is very easy to convert to a 4.6 liter tank in a '99 Mercury Grand Marquis. Remove the engine cover, disconnect the connector (other side of the alternator opposite the thermostat housing), remove it with a 19mm deep hex (just loosen the connector). The new one comes with sealant on the threads, fix it and plug it in. On my car, the sensor was at the highest point in the cooling system, so coolant was not leaking. Projects don't get much easier.