My Car AC Is Making Weird Noises—What Should I Do?

Your car’s air conditioning is key to comfort on long road trips and short commutes alike, but a lot of vehicles have AC problems that hinder effective operation and leave drivers and passengers sweating in the heat. A lot of drivers notice issues with AC systems when they start to make loud or unusual noises during operation. If you’re wondering, “Why is my car AC making weird noises, and how do I fix it?” keep reading for some helpful advice from auto cooling experts.

Why does my AC rattle when I turn my car on?

One of the most common AC issues vehicle owners notice is a rattling noise when they turn the car on. Car air conditioners are designed to operate relatively quietly, so loud noises typically indicate something is wrong with the AC system.

There are several things that can cause AC systems to make a rattling noise. If you’re wondering, “Why is my car AC making weird noises, and how do I fix it?” consider a few of the following reasons why AC systems make rattling noises:

• Failing pulley bearings: Auto AC systems have pulley bearings that can wear down over time. When pulley bearings start to wear out, they may begin to produce noises, including rattling, grinding and squealing. If you notice any of these sounds, your vehicle may need pulley bearing replacement.
• Worn compressor clutches: Compressor clutches are part of a car’s AC system that help supply energy to an AC compressor to supply cold air to the cabin of the vehicle. These parts undergo a significant amount of wear, and they are very susceptible to damage, especially as they get older. Sometimes, a worn-out compressor clutch might contribute to rattling sounds. In some cases, compressor clutches can be replaced on their own, but there are other situations where the compressor clutch and the compressor both have to be replaced.
• Slipping serpentine belts: Serpentine belts help power various systems within a vehicle, including the air conditioning system. When these belts wear out, they are more likely to slip during operation and produce rattling noises. Since serpentine belts are so important to so many automotive systems, it’s smart to have these parts replaced proactively.
• Malfunctioning compressor: Oftentimes, AC rattling noises are caused by a malfunctioning compressor. If the compressor is failing, it’s likely that the AC system is not blowing cold air the way it should be. Replacing a car AC compressor can be expensive, so it’s worth it to have your system inspected by a mechanic to determine the cause of your AC problems.

AC repair and automotive maintenance services

No matter what kind of cooling problems you’re dealing with in your vehicle, the team at Auto Air & Heating, Inc. is here to help with expert automotive repair services. We specialize in automotive heating and cooling services, in addition to preventative maintenance services for vehicles of all kinds. Find out more about everything we have to offer by giving us a call or stopping by today.

Categorised in: Auto AC Repair

This post was written by Writer