Skip the auto shop - Our mechanics make house calls

Q: Air control knob staying in one position

asked by on

My defrost/air knob only stays in one position. When trying to turn it, the knob bounces back to to the defrost position.

A: There is a possibility that the mode door f...

There is a possibility that the mode door for the vent, floor, defrost blend door is broken in the evaporator case, or that something fell into the case through the defroster duct and is binding the door. The dash panel and center controls need to be removed to access the lever. I recommend you seek a certified mechanic, such as one from YourMechanic, to come and test your vehicle for you to see if they can see if something is binding the lever or cable and that the problem is not inside the evaporator case.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: New battery but not starting

Hello. If your car won't turn over after replacing the parts you have listed, this could mean that the timing belt is broken. For your engine, when the timing belt breaks the motor is not "in time" and can not...

Q: Convertible rear window fell out & must also replace top

Hello. If you want to make sure that the window does not come out again then you need to replace it with the complete top. If you replace just the window on this unit and try to secure it then...

Q: Key entry damaged

Hi! I'm so sorry to hear that you had to go through that. It's likely that the thief broke or bent pieces inside both the door lock, and ignition cylinder. In most cases, the damage will be irreversible because the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.