How to Repair an Automobile Air Conditioning Compressor?
3 Answers
If the automobile air conditioning compressor has lost pressure, it is recommended to directly replace it with a new one. Relevant information is as follows: 1. Function: The automobile air conditioning compressor is the heart of the car's air conditioning refrigeration system, responsible for compressing and transporting refrigerant vapor. Compressors are divided into fixed displacement and variable displacement types. According to different working principles, air conditioning compressors can be categorized into fixed displacement compressors and variable displacement compressors. 2. Classification: Based on different working methods, compressors can generally be divided into reciprocating and rotary types. Common reciprocating compressors include crankshaft connecting rod type and axial piston type, while common rotary compressors include rotary vane type and scroll type.
When it comes to repairing car air conditioning compressors, I believe it should be approached step by step from a professional perspective. As someone in this field, common issues include the compressor not starting or making unusual noises, which could be due to refrigerant leaks, electrical faults, or internal wear. First, check if the clutch engages; if there are strange noises, replacement might be necessary. Before testing, ensure the system pressure is safe, and use specialized tools to recover refrigerant to avoid environmental pollution. When replacing the compressor, clean the connection ports, and after installing the new part, vacuum the system, refill with the correct amount of refrigerant, and then test its performance. During regular maintenance, pay attention to belt tension and cooling efficiency to spot potential issues early. I’ve seen many car owners attempt DIY repairs, only to damage pipes or risk electric shock, so I strongly recommend going to a reputable shop—spending a few hundred to a thousand bucks will save you a lot of hassle.
Last time my car's AC suddenly stopped cooling, and the compressor was making a stuck noise. I thought to myself: first check the fuses and relays, none were blown; then start the engine and turn on the AC to see if the compressor clutch engages. Turned out it didn't, and online research suggested it might be a bad electromagnetic coil. I considered trying to fix it myself, but specialized tools were needed to recover the refrigerant, and I was worried about leaks harming people and the environment. In the end, I took it to a repair shop where the mechanic diagnosed internal wear in the compressor. Replacing it cost about 800 bucks, plus refrigerant recharge and testing. My advice: don't push DIY too hard—if the compressor has obvious noise or vibration, get it professionally handled ASAP to avoid small issues becoming big problems. Regular AC system checks can save you a lot of money.
