Skip the auto shop - Our mechanics make house calls

Q: Hear clicking sound when air conditioner is on

asked by on

When the air conditioner is on, and sometimes even when it is not, I can hear a loud, fast clicking sound from the driver's side dash. If I constantly change the mode of the air flow, I can get the clicking to stop. When I turn it on highI always get cold air. I am not even sure the heater works at all.

A: The clicking noise is most likely being emi...

The clicking noise is most likely being emitted by one of the actuators that control the ducts in your air conditioning system. When they go bad they often make the clicking noise you are referring to. Depending on where the actuator is located, the dash may need to be removed from your car to service it. I would ask for assistance from one of the mechanics at YourMechanic in fixing this clicking sound.

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: Ecu not grounding ac circuit or fans for ac to work.

Everything in the A/C system and heater is controlled by the A/C heat control panel module. If fuse 17 on the inside fuse panel and fuse 47 in the outside engine compartment fuse box are both good and the ECU...

Q: Rough starts and engine dies at idle

If the idle air control valve or mass air sensor is having problems. If the idle valve is sticking closed it can cause the engine to idle very low and rough, and will run fine if the throttle is held...

Q: Missing fuses

Hello. There are fuses in your fuse box that control the car’s ability to start. The best thing to do would be to put the fuses back and see if the car starts. If it doesn’t, it could be that...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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.