Radiator Fan Open

Most cooling fans use electric motors that have a moderate to high current draw and as a result are commonly controlled using relays.

The fan full movie. Radiator fan not working. Discussion starter 1 feb 2 2009. I also show how i tested my cooling fan switches.

Most japanese cars have a normally closed switch. And play a key role in keeping the car at safe temperatures during idle and low speeds. The computer looses power with the key off and the same applies to the coolant temperature sensor.

The cooling fan resistor is an electrical resistor that limits power to the fan in steps so that the fan can operate at different speeds according to the cooling systems demands. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool. Jump to latest follow 1 7 of 7 posts.

If the radiator fan is not working its a serious problem. Since power to the cooling fan is sometimes routed through the cooling fan resistor when it fails or has any problems it can cause issues with the regular. The switch turns on at 203 degrees fahrenhe.

All the fans make a little background noise we dont find it a problem but everyones different. A cooling fan helps move air through the radiator when the vehicle is stopped or moving slowly. Just because the radiator fan is not on does not mean that it is not working.

An electric fan motor connected to a plastic fan blade located directly behind the radiator which is controlled by a coolant temperature sensor. The relay however has direct power to one side the same as a light switch. This engine temperature information is utilized by the computer which signals the control relay to send.

Your chevy sonics radiator fan has one of the most important jobs on the vehicleit is the last line of defense between you and an overheating engine. Making your diy fanned radiator mechanical construction. These switches open when the set temperature is reached thus turning the fans on.

Coolant is flowing steady through radiator about the a in normal just before fan comes on coolant starts to rise through open neck about the end of l in normal of radiator then goes down into radiator again and flows through radiator no problem a in normal again when fan is on. When the correct parameters are met a temperature switch or. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off.

You can adapt these ideas to suit your situation. Its 2m long and low to fit under a long window with a wide shelfwindow seat. Replace the cooling fan relay with a new one.

So cooling fan motors are an important component to any engine cooling fan assembly. Joined jan 1 1970 0 posts. I added fans to a radiator with an unusual shape.