What is a blower motor in a car?

The blower motor is the fan that pushes heated or cooled air through dashboard vents based on the climate system settings and the fan speed selected. Adjusting the fan speed sends a signal through a resistor to the blower motor to either pick up the pace or slow it down.

How much does it cost to replace a blower motor in a car?

What happens when car blower motor goes out?

If this happens, you'll likely notice a noise that comes from right behind the vent, such as a slapping or a sudden pop, followed by problems with your airflow. You might also hear ongoing whirring noises, or noises that change or get louder if you increase the fan speed.

Can you drive a car with a broken blower motor?

Should you drive with a bad heater blower motor? A bad heater blower motor will not affect the safety of your car, with the possible exception of you not being able to clear the windshield of snow, ice, or condensation if the defrosters don't work.

How long do blower motors last in a car?

The blower is supposed to last the entire lifetime of your car. However, situations vary and some climates require the fan to be used too often. Many car owners find themselves having to replace the blower after five years. The quality of the motor used to power the blower matters.

How long does it take to replace a car blower motor?

How Long Does It Take To Replace A Blower Motor In A Car? It generally takes about 4 hours for an experienced technician to do a blower motor replacement. If you are doing it on your own in your garage with common tools, you can expect the job to take 6 hours or more.

Can you drive without a blower motor?

Your car's blower motor is not only necessary for the operation of your air conditioner. Without a functioning blower motor your engine runs the risk of overheating.

When should I replace my blower motor?

If the motor is making rattling, clanking, or banging sounds, it may be because of a loose or broken part. Loud banging sounds are especially worrisome. They're usually a sign that something is damaged or disconnected. And this may mean replacing the blower motor.

Can a bad blower motor cause no heat?

Problems with Your Blower Motor or Blower Motor Resistor Without it, there's no circulation of air—hot, cold, or otherwise. The blower motor resistor is the part that controls the fan speed of the blower motor. Both of these components can fail, resulting in the heating system simply not working.

Can a bad blower motor cause no AC?

Power to the blower motor is fed through the blower motor resistor, so if it fails or has any issues power can be cut off to the motor. A blower motor without power will not be able to produce any air pressure, and as a result the heating and air conditioning system will be left with no air coming from the vents.

Why is the blower motor making noise?

Furnace blower motor noise when starting is likely due to damaged or worn-out parts. Humming, screeching, or thumping sounds are usually signs of underlying problems. Identifying and correcting the issue can get rid of the sound and also ensure the longevity of the wider furnace system.

How many blower motors are in a car?

The number of blower motors in your vehicle depends on its climate control system. Some cars have one blower motor, but that may not be the case for some SUVs and vans. They may have two motors, one in the heater box and another in the vehicle's rear area.

Are blower motors expensive?

The total cost to replace a furnace blower motor can run anywhere from $100 to $2,000, but this usually accounts for the motor, fan, and house altogether. In some cases, you might save cash by replacing only the motor and leaving the other parts as is.

Is a blower motor a hard to replace car?

The replacement of the blower motor is common and straightforward, so most shops will perform the repair — many on the same day.

How many blower motors are in a car?

The number of blower motors in your vehicle depends on its climate control system. Some cars have one blower motor, but that may not be the case for some SUVs and vans. They may have two motors, one in the heater box and another in the vehicle's rear area.

How much does a blower cost?

How do I know if it's my blower motor or resistor?

Typically, if the fan will work on some speeds but not on others, the resistor is suspect. Okay, let's say there's no melting going on, but your fan doesn't work on all speeds. Typically, if the fan will work on some speeds but not on others, the resistor is suspect.

What does a blower do on an engine?

Summary. Both blowers and superchargers are aimed at increasing the volumetric efficiency of the engine by pumping in additional air into the engine to increase the intake manifold pressure of the engine, thereby increasing its efficiency and power.

Why is my car blowing out cold air when the heat is on?

Low Coolant Level The coolant (usually a mixture of water and antifreeze) in your engine doesn't just work to keep the engine from overheating: It's also the source of heat supporting the heating system. If there isn't enough coolant in your system, the heater core will blow cold air into your car.

What does a bad blower motor sound like?

A defective blower motor will make a continuous sound noticeable by the passengers in the vehicle. It can manifest as a knocking, whirring, clunking, vibrating, squealing, or whining noise that persists until the blower motor is replaced.

Is there a fuse for blower motor?

How much does a AC blower motor cost?

Replacing a blower motor costs $450 on average with a typical range of $250 to $800. With a warranty, you might pay as little as $150 for labor alone. For high-end models, like those with large motors or access issues, you might pay as much as $2,000.

Why is my car making a weird noise when I turn the heat on?

Loud noises you hear when your car's heater or air conditioner are on typically indicate a blower motor issue. The good news is that a blower motor problem like this can be the result of something as simple to fix as debris or trash that got caught in it.

Can you drive without a blower motor?

Your car's blower motor is not only necessary for the operation of your air conditioner. Without a functioning blower motor your engine runs the risk of overheating.

Are blower motors easy to replace?

The replacement of the blower motor is common and straightforward, so most shops will perform the repair — many on the same day.

When should I replace my blower motor?

If the motor is making rattling, clanking, or banging sounds, it may be because of a loose or broken part. Loud banging sounds are especially worrisome. They're usually a sign that something is damaged or disconnected. And this may mean replacing the blower motor.

Where is the blower motor located on a car?

Blower motor, resistor: how it works, symptoms, problems, testing. The motor that runs the fan in the heating and air conditioning system in a car is called a blower motor. It's located inside the dash, often on the opposite side of the steering wheel or inside the engine compartment on the firewall.

How does a car fan blower motor work?

The blower motor function is to rotate the fan that blows cold or hot air into the cabin. Its operation is governed by different components, as we will see in a moment. Being an electric component, the car fan blower working also involves a wiring system and source of electric power.

What kind of blower motor does a car have?

The most essential part of the blower assembly is a 12V DC motor, which can either be brushed or brushless. If your car is an older model, it probably uses a brushed motor. The AC fan blower motors in newer cars are usually brushless. These are more efficient, low maintenance, and allow for infinite speed levels.

What is a blower motor resistor?

The motor that runs the fan in the heating and air conditioning system in a car is called a blower motor. It's located inside the dash, often on the opposite side of the steering wheel or inside the engine compartment on the firewall. A blower motor resistor or a blower motor control module is the part that controls the speed of the blower motor.