Where Located Blower Motor Control Resistol Lexus Es300 1997
Symptoms of a Bad or Failing Cooling Fan Relay
Most modern vehicles utilise electrical cooling fans to assist pull air through the radiator so that it tin continue the engine cool. Most cooling fans use electric motors that have a moderate to loftier current depict, and every bit a result are commonly controlled using relays. The cooling fan relay is the relay that controls the engine's cooling fans. When the correct parameters are met, a temperature switch or the computer volition activate the relay, which will allow power to the fans. The relay will usually exist activated one time it is detected that the vehicle'due south temperature approaches excessively loftier temperatures. Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required.
1. Engine running hot
One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If yous observe that your engine is running at college temperatures than normal, that may be a sign that the relay is non operation properly. If the relay shorts or fails, it will not exist able to supply the ability for the fans to operate and keep the engine running at normal temperatures. Abnormally high temperatures tin can too be caused by a variety of other problems then it is recommended to have the vehicle properly diagnosed to be sure of the problem.
2. Cooling fans do not part
Non-functional cooling fans are another common symptom of a potential trouble with the cooling fan relay. If the relay fails, it will exist unable to supply power to the fans, and every bit a effect they will not operate. This tin can lead to overheating, particularly when the vehicle is at a cease, where there is no forward move past the vehicle to pass air over the radiator.
3. Cooling fans stay on at all times
If the cooling fans are staying on at all times, this is another (less common) symptom of a possible trouble with the cooling fan relay. If the relay shorts internally, it may cause power to exist permanently switched on, which will cause the fans to run at all times. Depending on the wiring setup of the vehicle, this may cause them to stay on fifty-fifty when the vehicle is off, which will drain the battery.
The cooling fan relay substantially functions as the switch for the engine'south cooling fans, and is therefore an important electric component of the vehicle's cooling system. For this reason, if you doubtable that your cooling fan, or relay, may possibly exist having problems, have the vehicle diagnosed by a professional technician, such as one from YourMechanic. They volition be able to await over your vehicle and supersede your cooling fan relay if necessary.
The statements expressed higher up are only for informational purposes and should be independently verified. Delight run across our terms of service for more details
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Where Located Blower Motor Control Resistol Lexus Es300 1997,
Source: https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-cooling-fan-relay
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