The AC compressor clutch is found in front of the compressor. Look at the compressor to see if there are any signs liquid is leaking out through the front seal. While it’s not common to see fluid leaking through the front seal because of a failed AC compressor clutch, it’s not unheard of. When the compressor clutch breaks, the bearing inside the compressor can become damaged as well. Without the clutch, the compressor doesn’t receive any power from the engine, so you are left without air conditioning. However, it’s much more common for the clutch to break and make it impossible to turn on the air instead. This isn’t good for the other AC components and could lead to bigger problems. With the clutch broken, the compressor could remain activated, making it impossible to turn off the air conditioning. Look at the front of the compressor while the air conditioning is running to see if the clutch is spinning. If the clutch seizes, normal action cannot continue. The clutch allows the compressor pulley to engage or disengage from the motor, ensuring it is only running when it should. On the other hand, a seized bearing is going to create a grinding noise.īecause it is so difficult to determine what part inside the compressor has gone bad, it’s often best to replace the entire compressor than attempt a repair. However, a worn-out or leaking bearing can also create a high-pitched squealing sound. If the clutch or other moving part starts to fail or seize, noises are a common complaint. Just like the engine, the compressor contains several moving parts. If you turn the AC on and hear a loud noise, it could be a b is failing. Of course, the higher cabin temperature could also be related to a lack of refrigerant, so it’s important to properly diagnose the system. A damaged clutch causes the compressor to malfunction, as it becomes unable to regulate the refrigerant flow. The most common sign of all bad ac compressor clutch symptoms is a higher cabin temperature than usually during hot days when you need the A/C.Īnytime the cabin temperature rises unexpectedly, you can often look at a defective compressor. Here is a more detailed list of the most common symptoms of a bad ac compressor clutch. The main symptoms of a bad or failing AC compressor clutch include:Īs you can see, there are quite many ways to tell it’s bad, so let’s go a little bit more into detail. You will notice that the air vents are only blowing warm air.
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