Why is the radiator fan not working on my Toyota Corolla?
There are many reasons why your Toyota Corolla’s radiator fan is not working. Of all the ones listed above, start with the coolant level, then check the fuse. After that, the order isn’t so important. But, you don’t want to miss the easy fixes before you start testing wiring.
Is the radiator fan always running in a Toyota MDT?
Not only was the radiator fan always running, but it was running on high speed (these cars have one fan that runs at 2 speeds; low and high). I searched google high and low and got very creative with search terms and got nothing on this issue. Apparently I am the first person ever to have this happen as even my Toyota MDT buddy was stumped.
Why is my Camry 4 cyl fan always running?
That requires a vacuum pump and manifold gauge set. Short of that, it’s one connector and a wrench to remove the switch. I have a 2004 Camry 4 cyl with 106,000 miles. The fans are running whenever the A/C or defrost is turned on, even when engine is cold.
Is it normal for a radiator fan to run all the time?
The fan running with the A/C or defrost turned on is normal, it has nothing to do with the engine being cold or not. The problem is when the fan stays on ALL the time, even with the A/C and defrost off.
Why does my Toyota Fan not turn on?
Temperature Sensor. The Toyota’s fan only turns on when the coolant reaches a certain temperature, which is measured by a sensor. This sensor switches the cooling fan off and on as needed. A failed sensor can cause the fan to run excessively or not run when cooling is needed.
How is the coolant temperature of a Toyota regulated?
A Toyota’s coolant temperature is regulated by many electrical and mechanical components. One of the more important components is the cooling fan. The fan lowers the coolant temperature after the coolant has finished its cycle through the engine. A Toyota’s cooling fan is powered by an electric motor.
What to do if your radiator fan is not working?
The first thing that you would want to do is locate the fuse for your Corolla’s radiator fan and make sure that it hasn’t blown. If it is blown, replacing the fuse will only solve the problem for a very limited period of time. Unless the wiring issue is fixed, the fuse will blow again.
How to troubleshoot an electric cooling fan problem?
1.Has the Cooling Fan Actually Failed? 1 If the fan comes on when the AC is running at MAX, but doesn’t run when the engine is hot, check the temperature sensor… 2 If the fan fails to come on, first check for a fan blown fuse or triggered breaker. On older vehicle models, you may… More
Why are the cooling fans not working on my car?
1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
How does the cooling fan relay work on a car?
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 will activate the relay, which will allow power to the fans. The relay will usually be activated once it is detected that the vehicle’s temperature…
Where is the air conditioning control panel on a Toyota Corolla?
Find the control panel by prying off the top instrument panel around the air conditioning temperature controls. Press the two fitting tabs in toward one another to release the heater control assembly. Find the blower motor easily in a Toyota Corolla.
Where is the blower motor on a Toyota Corolla?
Find the blower motor easily in a Toyota Corolla. If the air doesn’t increase and decrease with the fan controls, than there is a problem with the blower. Unscrew and remove the glove box assembly. The blower motor is directly behind the glove box. Unplug the electrical connection, unscrew it and remove it.
When to troubleshoot an electric car cooling fan?
On a warm engine, the fan may come on even if the engine is not running. When working on a hot engine or an engine that is running, keep your hands and tools away from the fan blades and moving components. Troubleshooting a cooling fan that doesn’t work can be a relatively straightforward task at times.
What to do if your Toyota Fan stops working?
A lick with the heel of my hand brought the blower motor back to life for a couple of days, I thumped it again and it worked for a day, but I noticed that it is dragging a bit, not blowing with the force it used to. I scored a Toyota factory motor on CL for $50, and it is on the way.
Where is the AC fuse on a Toyota Fan?
There should be a 7.5A AC fuse, above it the 30A heater circuit breaker, and above that the heater relay. ok ill give it a check tonight , i also dont believe i have a ac button
When did the blower on my Toyota stop working?
Pirates here at the dealership wanted $169.0 😆 Yeah NOT. Blower stopped working last Thursday, It came back on Friday after I wiggled the blower motor resistor, went back out Saturday. It doesn’t work on any speed.
Why do you need a radiator fan in a car?
To stop the engine from overheating, we take the help of coolants that flow through a radiator into the engine. The radiator’s job is to keep the coolant cool so that when it returns back into the engine, it is able to absorb more heat. A radiator fan is thus used to keep the temperature of the coolant in check. Thus, it has an important job.
Where is the relay on a radiator fan?
The fan relay is often located in the engine bay’s fuse box, but the best way is to check your repair manual to find where it is located. Testing a 4 pin relay is often very straightforward. Remove the relay and give 12 volts to pin 30 and 85. Ground pin 86 and check if there is voltage coming out from pin 87.
Why is my radiator fan not turning on?
Although the fan itself can go bad, that’s definitely not the place to start a diagnosis. Here are the most common reasons that your radiator fan does not turn on: Before poking your hands around your fan, make sure to treat it like it still could come on, and and keep your hands out of its path.
What causes a Toyota Corolla engine to overheat?
Toyota Corolla Overheating Repair Symptoms. When the radiator fans stop functioning properly, the engine temperature will rise as there will be insufficient airflow to cool the radiator. A failing radiator can cause the engine to run hot or overheat. Most radiators are made of metal and plastic.
Why does the radiator fan not come on when the AC is on?
In order for the AC Condensor to do its job it must stay as cool as it can. As for the engine coolant temp sensor, if the coolant is not hot enough to make the fan come on, then there is no need for the fan yet and there is no problem.
Why does my Jetta not have a cooling fan?
Simply the engine is not hot enough to turn on the cooling fan, its not hot enough outside, you are driving getting plenty of air flow through the grille to keep things cool without the assistance of the fan. Its possible that you have no problem at all. Was this answer helpful? I got a 2002 Jetta the cooling fans don’t turn on .