Why Is My Car Heater Blowing Hot Air On One Side And Cold On The Other?

by | Last updated on January 24, 2024

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Blend door actuators are the most common reason for the car air conditioning to blow cold air on one side and hot air on the other. They can be diagnosed with an advanced scan tool. ... If the actuator is clicking, this is another sign it will probably need to be replaced.

How much is a actuator cost?

The average cost ranges from $100 to $400 for an HVAC blend door actuator replacement in your vehicle.

How do I know if my blend door actuator is bad?

  1. Knocking. Knocking sounds can almost always be attributed to a failing blend door actuator. ...
  2. Clicking. ...
  3. Any Other Strange Noises. ...
  4. Inconsistent Airflow. ...
  5. Inconsistent Temperature. ...
  6. Wrong Temperature.

Why is cold air coming out of my car vents when the heat is on?

There are a few basic issues that usually lead to the blowing of from one's car heating system: There isn't enough coolant in the engine. There is a problem with your core. ... Your heating controls are broken .

Why does the heat not work on one side of my car?

If those setting are not allowing heat to come to one side of the cabin, the blend doors are likely to blame. These are small doors inside the climate control duct work that are run by small servomotors to control how the air temperature interacts with the cabin.

Can I drive with a bad actuator?

Can I drive with a blend door actuator problem? Driving with a bad blend door actuator may not be comfortable , but it won't hurt the vehicle.

How do I know if I have a bad actuator?

Noise: If you're hearing a sort of droning or squeaking repetitive sound from somewhere within your dashboard around the Center area , in the more or less general area that you are control knobs for the HVAC system are located, that's a good sign there's something wrong with the blend door actuator.

How long does it take to fix a blend door actuator?

Replacing the blend door actuator is actually a fairly simple process, and it should take no more than an hour . So the labor will cost you around $75 – $150 depending on labor rates at your local repair shop. In general, you can expect the total cost to be no more than $400.

Why is my heater not blowing hot air in my car?

Faulty heater cores and low or contaminated coolant levels often come hand in hand, and both issues may lead to your engine overheating and your heater not blowing hot air.

How do you know if your thermostat is bad in your car?

  1. The temperature gauge reads high and the engine overheats.
  2. The temperature changes erratically.
  3. The vehicle's coolant leaks around the thermostat or under the vehicle.

Why is only one of my vents blowing cold air?

This situation can be caused by a bad blend door (also called air mix) actuator, a broken or binding blend/air mix door, broken linkage to the blend/air mix door, or a faulty HVAC control head or wiring harness.

Where do I put Freon in my car?

For most vehicles, the low pressure side fill port is located on the left side of the engine bay . It will often be a small section of metal pipe that has two lengths of rubber hose coming off either end. Look to the back of the engine bay called the firewall.

Rebecca Patel
Author
Rebecca Patel
Rebecca is a beauty and style expert with over 10 years of experience in the industry. She is a licensed esthetician and has worked with top brands in the beauty industry. Rebecca is passionate about helping people feel confident and beautiful in their own skin, and she uses her expertise to create informative and helpful content that educates readers on the latest trends and techniques in the beauty world.