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What is a blend door issue?

What is a blend door issue?

If your airflow coming from your vents isn’t consistent, there could be a problem with your blend door actuator. This happens because the blend door is moving back and forth, diverting the airflow and causing inconsistent airflow to come out of your vents. Inconsistent Temperature.

How can I tell if my blend door is a problem?

To be confident that the blend door unit is the problem, then you will have to get your hands dirty. Remove the heater hose off of the heater core from under the hood. Place the heater hose on the engine outlet after taking the heater return hose off of the engine.

What causes a bad blend door actuator to break?

What Causes a bad blend door actuator? A blend door actuator is linked to an air control door pivot found on the last drive of the unit; a plastic gear set is frequently rotated from one side to another by the electric motor.An actuator can become faulty if the plastic gear set turns out to be fragile and it breaks.

How does a blend door work on a car?

The Mode doors direct the flow of air to the floor, dash vents and defroster. Each door is operated by either a vacuum or electric motor. Blend door actuator. The blend door is controlled by the vehicle’s heater controls. If the actuator is an electric motor, the driver operates a knob to change from cold to hot.

Why does my Blend door keep moving back and forth?

Inconsistent Airflow: If the blend door is moving back and forth, then the airflow will be diverted incorrectly or maintained incorrectly. That’s a pretty standard indication that there’s a problem with the blend door actuator.

Why is my Blend door not working properly?

The blend door is the problem if the air is cooler than in vent position.The problem is in the cooling system if you have to turn the temp knob at a cold position to feel the A/C. It is possible that the coolant circulation is being reduced by rust deposits in the heater core.

When to go to the blend door actuator?

If you are having a problem with your heating or cooling system there are of course several problems that could be at the root of it, but the blend door actuator is definitely a place to go to check especially if you’re noticing those sounds that we’ve mentioned.

Why is a blend door called a door?

The blend door is called a door because it really is just a flat panel of plastic. It opens or closes to allow air flow in whatever direction is required. It’s about as low-tech as your car can get, where the actual technology is in the actuator itself.

Is the blend door on a Jeep Wrangler a problem?

Heat doesn’t get hot and after all trouble shooting my final thing to check is the blend door. Which many people think is the problem. I’m just curios of how detailed of a project it is gonna be. Pretty much what am I getting myself into and what I am looking for. Thanks in advance. not sure on this i am having similar issues with my 97.

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Ruth Doyle