What are the symptoms of a faulty car compressor?
2 Answers
Symptoms of a faulty car compressor: The air conditioning does not cool. Solution for a faulty car compressor: It needs to be inspected and repaired at a 4S shop. More information about car compressors is as follows: 1. When there is a certain amount of refrigerant in the system, the engine accelerates. At this time, the low-pressure gauge pointer should drop significantly. The larger the throttle, the greater the drop in the pointer amplitude, which indicates that the compressor is in good condition. Otherwise, it indicates an internal fault in the compressor. 2. The car compressor is the heart of the car air conditioning refrigeration system, responsible for compressing and transporting refrigerant vapor. Compressors are divided into two types: fixed displacement and variable displacement. According to different working principles, air conditioning compressors can be divided into fixed displacement compressors and variable displacement compressors.
I found that the most common symptom of a broken car air conditioning compressor is the lack of cold air. Even if you set the temperature to the lowest, the air blowing out is still warm or hot, especially in summer when the car feels like a steamer. When the compressor starts, there may be squeaking or grinding sounds, and noticeable vibrations, as if the engine is trembling. If it doesn't start, the entire AC system might fail—buttons light up but don't respond. If the compressor belt is worn, you might hear a squealing sound or even see a bit of smoke. Ignoring it long-term can increase engine load, raise fuel consumption, and potentially damage the AC lines. I recommend checking the compressor belt tension and refrigerant pressure during routine maintenance to avoid last-minute issues. If you hear unusual noises or notice poor cooling while driving, stop immediately to inspect or send it for repair to prevent minor issues from turning into major repairs.
