Is your car air conditioner making a lot of noise? Paying attention to the type of noise your air conditioning system makes can often take you to the precise component or component of the system
that is at fault:
- Clutch worn out
- Compressor failure
- Hoses with faults
- Mounts for loose components
The section headers below describe specific noises you might hear coming from your car’s air
conditioning system. We will explain to you what each noise means and the component from the
system that has the possible reason.
1. Clicks & squeals noise
It’s typical for the air conditioner to make a quiet clicking sound. The AC compressor clutch is probably what you’re hearing. A worn clutch, on the other hand, can make a loud click. As a result, you should consider this a warning signal.
If, on the other hand, you hear rapid clicking noises every time the blower motor starts up, you may
have particles interfering with the motor’s operation.
As the clutch connects when it reaches the end of its service life, loud clicks may develop into
screaming or rattle sounds.
Other reasons for a squealing air conditioner include:
- An oil-contaminated clutch.
- The compressor has seized.
- A worn-out pulley or bearing.
The serpentine belt on your engine drives the AC compressor in your vehicle. Check the drive belt if you haven’t installed the source of the squealing sound in the AC system.
2. Buzzing & vibrating sound
An AC buzzing sound may appear shortly after the system has been serviced and cooled. When you turn on the air conditioner, you may hear a buzzing sound and just so you know that it is not normal.
A buzzing sound usually indicates that the system has been overcharged with refrigerant. This can cause performance issues (poor cooling) and, in the worst-case scenario, damage to system components.
If the compressor is left unattended, you may have to replace it. Visit the shop that serviced your car’s air conditioning system, explain the noise, and have them
inspect the system.
3. Whistling or hissing noise
A whistling or hissing noise coming from the AC system is not always characteristic of a system problem.
When you turn off the air conditioner, you may hear a hissing sound as high and low-pressure areas in the system equalize. When refrigerant flows through a metering component, it makes a whistling or hissing sound.
For your attention, every single noises that you car or air conditioner it is probably a hint that you car is in trouble and need to service. If the noises is getting worse day by day, get you car’s service at the nearest workshop.