What Causes Reduced Airflow from the AC at High Speeds?

[MacRiver]

Here are the specific reasons for reduced airflow from the AC at high speeds: 1. Insufficient refrigerant: The AC lacks refrigerant. Unless the vehicle has been involved in a severe rear-end collision or had its AC piping or related components disassembled, which affects sealing, the refrigerant should not deplete. 2. Dirty condenser: The radiator and condenser are crucial cooling components of the vehicle. If they are too dirty, it can lead to poor heat dissipation, not only causing engine overheating but also directly affecting the AC's cooling performance. Therefore, if the AC's performance is unsatisfactory during hot weather, consider whether the vehicle's cooling system needs cleaning. 3. Worn or loose compressor belt: Typically, the 4S shop will remind you to replace the compressor belt during maintenance. Failing to replace it on time can result in slipping during use, leading to belt breakage, unusual noises, and loss of power assistance.