Skip the auto shop - Our mechanics make house calls

Q: Clicking noise, dimming head lights and pulsing AC blower..

asked by on

I've recently started hearing a strange clicking noise when I brake.. When driving at night one day I noticed when the click would happen the AC blower would pulse or lose power and the head lights would dim.. Any ideas?

My car has 169000 miles.
My car has an automatic transmission.

A: Hello there. A few different faults can cau...

Hello there. A few different faults can cause a clicking noise such as this when the car is braking. The most common causes would be the brake booster, transmission faults, fuel pump, IAC valve, oxygen sensor, or MAF sensor. Any of these can cause the vehicle to stall or die when slowing down. If you want to have this looked at by a professional, a certified technician, such as one from YourMechanic, will be able to diagnose the clicking noise and any other symptoms to let you know what needs to be repaired.

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: Front end shakes - 2000 Chevrolet Monte Carlo

She may be correct. However, you may want to inspect all of the parts your spoke of and ensure there are no torn boots or grommets. If there are, have them replaced. If not, no need and have a front...

Q: Brake light does not work.

Use the power wire from the brake light switch to activate the rear brake lights. By having an alternate power supply, ;the brake lights have no control without a switch, so the module is on but not functioning for the...

Q: Automatic car stalls when put in gear

The internal transmission seals are leaking pressure to reverse and forward gears at the same time and lock up transmission then stalls the engine. You will need to have a pressure test on the transmission to see if the leak...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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.