How Does A 2 Speed Radiator Fan Work

A manual fan is connected to the engine drive pulleys and is controlled by a thermo fan clutch which senses radiator heat and engages when the engine is running at higher temperatures.

How does a 2 speed radiator fan work.

All three relays are ganged together for easy mounting. This video shows how an normally open cooling fan switch works. This article pertains to all vehicles. The cooling fan relay is the relay that controls the engine s cooling fans.

The switch turns on at 203 degrees fahrenhe. Mechanical fans can sometimes work better than electric fans. The greater precision of pulse width modulation translates to a small but worthwhile increase in fuel economy. Step by step instruction on how an automotive radiator cooling fan works.

Most cooling fans use electric motors that have a moderate to high current draw and as a result are commonly controlled using relays. If you find that your vehicle is not cooling off properly the radiator fan might be the culprit. If the resistor breaks or has any issues it may cause the fans to only function on certain settings. A larger radiator a larger clutch fan and a shroud would probably keep your engine cool.

When the vehicle reaches a certain speed the blades of the fan will flatten which will provide the engine with more power that it can use. The low speed sensor triggers the fan at 180 degrees f while the second sensor engages the high speed side of the fan at 195 degrees f. The cooling fan resistor is meant to send power to the fans in steps so that the fans may operate at. Cooling fan speed issues.

For some however electric cooling fans are not only keeping the engine cooler in traffic but they keep the engine cool at stop lights too. The blades on the flex fan are thin and are made of aluminum or stainless steel. When the correct parameters are met a temperature switch or. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.

There s a simple reason. Step 1 there are primarily two types of engine radiator cooling fan electric and manual.