Why do I need to check my cooling fan relay?
The cooling fan relay essentially functions as the switch for the engine’s cooling fans; and is therefore an important electrical component of the vehicle’s cooling system. Finally, if you suspect that your cooling fan relay, may possibly be having issues, have it checked.
Where does the cooling fan in the engine go?
The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. A main cooling fan for the radiator. A second fan for the condenser.
How can I tell if my cooling fan is working?
The quickest way to tell whether or not the electric fan (s) are working is to start the engine; let it reach normal operating temperature and then turn the A/C on. The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. A main cooling fan for the radiator.
Why are my cooling fans running at all times?
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 problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
Where are the cooling fan relays on a radiator?
The electric cooling fan (s) are controlled by the Body Control Module (BCM) which enables the fans through the PCM. The PCM enables the ground path for the three cooling fan relays. The relay (s) are used to control the high current flow to power the cooling fan motors.
How does the mode control relay work on a radiator?
The relay (s) are used to control the high current flow to power the cooling fan motors. When minimum cooling is required, the BCM will command the PCM to energize cooling fan relay #1 and since both fans are connected in series through the Mode Control relay, both fans will operate at low speed.
The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. A main cooling fan for the radiator. A second fan for the condenser.
What are the symptoms of a bad cooling fan relay?
Relays bridge the gap, making it possible for small currents to activate larger ones. One of the first symptoms commonly associated with a bad or failing cooling fan relay is; an engine that runs hot or overheats. Non-functional cooling fans are another common symptom of a potential problem with the cooling fan relay.
The cooling fan relay essentially functions as the switch for the engine’s cooling fans; and is therefore an important electrical component of the vehicle’s cooling system. Finally, if you suspect that your cooling fan relay, may possibly be having issues, have it checked.
When do you need a new motor relay?
When the fan is on too often, or won’t come on at all, a new relay may be the solution. Without a working fan, you could overheat or damage the engine.
What kind of Relay does a Porsche have?
Standard five pin multi fuction relay. This relay works for fuse power, wiper system, cigarette lighter, fresh air fan, headlights, horn, driving lights, rear window defroster, fuel injection power, fuel pump and heater blower motor. Ten required per car.
The quickest way to tell whether or not the electric fan (s) are working is to start the engine; let it reach normal operating temperature and then turn the A/C on. The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. A main cooling fan for the radiator.
Is the radiator a fan or a relay?
The venerable radiator cooling fan has been a main stay in automotive cooling systems for many years. Gone are the days of the fan clutch, except in certain applications. Most vehicles manufactured after 1990 do have a cooling fan and relay. A relay is used due its ability to absorb voltage spikes and shorted circuits.
How to connect a fan control relay module?
Connect other end to low speed fan control terminal at fan control. l Using a second jumper wire, connect one end to a good ground, connect the other end to the ground terminal on the blower motor. l Did fan control run?
Can a bad fan relay cause an engine to overheat?
However, a bad cooling fan relay isn’t the only culprit for excessively high engine temperatures. Many other issues can cause the engine to run hot or overheat. Rather than uncommonly high engine temps, the driver may notice that the cooling fans have stopped running.