What to Do When the Car Air Conditioning Compressor Belt Slipping?

[Dianne]

When the car air conditioning compressor belt slips, it is necessary to check whether the compressor is stuck or has excessive resistance. The functions of the air conditioning filter include the following three points: 1. Provide fresh air: It can prevent the car windows from fogging up, ensuring clear visibility for the driver and safe driving; it supplies fresh air to the cabin, preventing occupants from inhaling harmful gases and ensuring driving safety; it effectively sterilizes and deodorizes. 2. Ensure safety and hygiene: It keeps the cabin air clean and prevents bacterial growth; it effectively separates solid impurities such as dust, filter powder, and grinding particles from the air; it effectively blocks pollen, ensuring that drivers and passengers do not suffer from allergic reactions that could affect driving safety. 3. Adsorb harmful substances: It adsorbs moisture, soot, ozone, and odors from the air, with strong and durable moisture adsorption capabilities.

[DiNatalie]

I found that when the AC compressor belt in my car slips, it's mostly due to a loose belt or oil contamination. At this time, the AC won't cool properly, and there might be a screeching sound. Last time, I handled it myself: first, turn off the engine, press the belt with your hand to check how loose it is—generally, about 1 cm of play means it's too loose. Adjust the tensioner screw to tighten it a bit, but remember to use a wrench carefully to avoid hurting your hand. Cleaning the pulley is also important; wiping off oil or dust with a cloth can improve the situation. If the belt has many cracks or severe wear, it's time to replace it, otherwise, it might completely break and damage the compressor. I recommend buying an OEM belt and replacing it yourself—it saves money and hones your DIY skills. But if you're really unsure, it's better to visit a repair shop to avoid damaging parts and incurring higher costs. Regularly check it every few months to prevent such minor issues.

[Aubrey]

To address car AC compressor belt slippage, I start by checking the belt tension. The main causes of slippage are aging and slackening of the belt or oil contamination on the pulley, leading to insufficient friction. The steps are straightforward: With the engine off, check if the belt sags more than 1 cm. If it does, try tightening the tensioner's bolt clockwise by half a turn using a wrench. Cleaning the pulley with a dry cloth or cleaner to remove oil stains is a crucial step—less lubrication helps the belt grip better. If replacing the belt, choose a high-quality one of the same size, and ensure proper alignment during installation by noting the original position. After installation, test the AC operation. Don’t forget to check for pulley misalignment or looseness, as these can also cause slippage. Regularly tightening screws during maintenance can significantly extend the belt’s lifespan. If the belt shows cracks or excessive noise, replace it immediately to avoid damaging the compressor later. DIY fixes usually cost under $100, while professional repairs are pricier but more hassle-free.

[Hayden]

I think the issue of the car's air conditioning compressor belt slipping needs to be addressed immediately and not delayed. Slipping can cause excessive wear or even breakage of the belt, which not only renders the air conditioning ineffective but may also affect the engine's transmission system, leading to safety hazards. For example, I once experienced a situation where the belt made a sharp squealing noise and then the air conditioning stopped working. I immediately pulled over to the side of the road. Check if the belt is loose or contaminated with oil, and test the tension by gently pressing it with your hand. If you find it troublesome or are unsure, don’t force driving; instead, call a car repair service or have it towed to a shop. A professional technician can adjust the tension or replace the belt in just a minute. Safety comes first—though a belt issue may seem minor, accumulated problems can lead to major incidents. Have a comprehensive inspection, including the belt, done at a shop every six months. Spending a little money for peace of mind can significantly reduce unexpected issues. Taking quick action can prevent damage to more components, saving money and ensuring a safer drive.