Can cooling fan cause check engine light?
If the cooling fan relay has failed, you may see warnings, such as the check engine light and the temperature warning light, pop up on the dash, but first, you may notice that the A/C stops cooling. More about that in the next paragraph. The check engine light illuminating may indicate a faulty cooling fan relay.
Does low coolant turn on check engine light?
Low coolant in the radiator of your car can trigger the malfunction illumination light (MIL), also known as the “check engine” light. Low coolant can affect the internal temperature of the engine, which is protected by the antifreeze.
Why is my check engine light blinking when I drive?
A blinking check engine light will pop up on your dashboard display when your engine misfires. This means that the engine is dumping unburned fuel into your vehicle’s exhaust system. This is a serious problem because it can rapidly raise the temperature of the catalytic converter.
Is it OK to drive with flashing check engine light?
In many vehicles, there are two types of check engine lights—a solid light and a flashing light. A flashing light could mean a more serious problem like an overheating engine or engine misfire, sometimes causing irreversible damage. You shouldn’t drive further if this is the case.
How far can you drive with a blinking engine light?
The rule of thumb is that if the check engine light is flashing, you can’t keep driving the car. It’s an emergency. Often it indicates an engine misfire. If you keep driving, you will likely cause irreversible damage, mostly to the (expensive) catalytic converter.
How do I know if my thermostat or water pump is bad?
What You Should Know About Bad Water Pump Symptoms
- Coolant leak.
- Engine overheating.
- A whining, sometimes a grinding, noise coming from the front of your engine.
- Coolant warmer than normal during the hot summer months.
- Not much heat coming out of the heater during the winter, accompanied by low coolant level.
How can I tell if my engine cooling fan is working?
So, the easiest way to check it is visually. Check it for a continuous wire with no breaks. Using a multimeter is another good way. So, if you find a blown fuse replace it. That may be all you need to get back on the road. But, If The Fuse Is OK, Move On To The Next Step.
What happens if the fan on my car fails?
So, a fan failure or a failure of the fan relay or control circuit is bad news. Because, it can allow the engine to overheat. On applications that have variable fan speeds; the engine may also overheat, if the fan speed fails to increase when additional cooling is needed.
What causes a blinking or flashing check engine light?
A blinking or flashing check engine light is always caused by misfires. However, it is not as simple as that because many different things can cause misfires. Here is a list of things that can cause a misfire, which may result in a blinking check engine light: Misfires on one or several cylinders (most common) Faulty spark plugs/Coils
What makes an engine fan not turn on?
Engine thermostat is stuck OPEN (engine never gets hot enough to turn on the fan) A wiring problem (blown fuse, loose or corroded connector, shorts, opens, etc.) On most systems; there is a coolant temperature switch that turns the fans on and off.