Cadillac XT4 air conditioning compressor failure due to hairline crack on pulley on Cadillac XT4

Some Cadillac XT4 owners report experiencing air conditioning compressor failure due to several common issues, including low or overcharged refrigerant, compressor malfunction, and dirty condenser or evaporator coils. Additionally, problems with the blend door actuator, evaporator temperature sensor, AC pressure sensor, or blown fuses and faulty wiring can also contribute to compressor failure. Some owners have noted that the compressor may not turn due to belt slippage on the pulley or a faulty A/C compressor relay. If a hairline crack on the pulley is suspected as the cause, it is recommended to have a professional mechanic conduct a thorough inspection to accurately identify and resolve the issue.