How to Solve the Problem of a Very Noisy Car Compressor?
2 Answers
There are several solutions to address the issue of a very noisy car compressor: 1. Compressor air valve: During operation, the internal components of the compressor can cause the valve plate to violently strike the valve seat, resulting in significant noise. This can be mitigated by optimizing the design of the valve port shape, adjusting the stiffness of the valve plate, and increasing the spring damping of the valve plate to reduce vibration. 2. Install an intake silencer: Enhancing the noise reduction capability of the silencer can effectively control the noise generated by the compressor. 3. Lower the overall center of gravity of the compressor: A high installation center of gravity can lead to frequent and intense vibrations. Reducing the vibration amplitude of the compressor body and minimizing the noise radiation range can effectively address this issue.
Last time, the air conditioning compressor in my car was making a loud noise, as if something was stuck inside, which really startled me. I thought it was just normal aging noise, but the noise became so loud that it affected my driving mood. I opened the hood to check it myself, and the compressor belt is the most common source of such issues. Over time, the belt can become loose or worn, causing squeaking sounds. You can try pressing the middle part of the belt with your hand—if it easily depresses more than half an inch, it’s too loose and needs adjustment of the tensioner or replacement. If the belt is fine, the noise might come from inside the compressor, such as a damaged bearing or dry components, which would require professional tools to fix. I recommend checking the belt’s condition briefly during each car wash to ensure proper tension. If that doesn’t help, you should promptly visit a 4S shop or repair shop. Delaying compressor repairs can damage the entire AC system, leading to costlier fixes. Also, a reminder: if the noise increases when the AC is on, it might be due to insufficient lubrication—adding some specialized lubricant can sometimes alleviate the problem.
