Skip the auto shop - Our mechanics make house calls

Q: Loud clicking behind the AC controls

asked by on

The problem was what I though coming from the actuator right behind the ac controls attached to the duct work going through the middle console because I could feel the ticking and once I replaced it the noise stopped for 4 days, and now it back. The ac doesn't even have to be on. Once the car starts up the noise starts for about 20 seconds, sometimes it keeps doing it until the car shuts off again. I'm not sure what that actuator controls but if I unplug it the noise stops. Also when the noise is going on I don't get air from the front vents, only rear and floor vents. Any ideas? Just a bad actuator or is something else going on? Thanks in advanced!

My car has 190000 miles.
My car has an automatic transmission.

A: Hi there: If you unplug the system and the...

Hi there:

If you unplug the system and the noise goes away, it’s possibly the actuator, but I wouldn’t count out other AC systems including the blower motor or compressor that are causing the ticking sound. To avoid any unnecessary repairs, the best way to know for certain is to have a mobile mechanic complete an inspection of the noise coming from the A/C, so they can help you trace the issue and pinpoint the components that are making this noise.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Heat not working on passenger side. Jeep Grand Cherokee

Hi there - these events are most likely not at all related. The lack of heat on the passenger side only is an issue with the controls or actuators for the heater "air blend doors". These are the air-routing mechanisms...

Q: Mileage per gallon has decreased

Hi there. From the description you have provided, your vehicle's loss in MPG (miles per gallon) has continually fallen over the last 10,000 miles. This could be caused by several things. It could be, the air filter is dirty and...

Q: Is my blower motor broken?

If you switch the blower "on" and there is voltage at the terminal under the dash that supplies power to the motor (you would be probing the wiring harness with a voltmeter), then the blower motor is probably dead. Some...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...