What problems will occur if the car compressor is broken?

[LaAlina]

Damage to the car air conditioning compressor can cause the air conditioning to stop working or result in poor cooling performance. Obvious symptoms include the compressor failing to rotate, unusual noises during rotation, abnormal pressure levels (low high pressure, high low pressure, or both high and low pressures remaining unchanged). Additional relevant information is as follows: 1. Methods to determine the condition of a car compressor: When there is a certain amount of refrigerant in the system, disconnect the compressor's low-pressure pipe and block the high-pressure side pipe fitted with a pressure gauge. Then, increase the engine speed to approximately 2000 RPM. At this point, the compressor's high-pressure side should read around 1.5MPa, and the pressure should not change significantly within a few minutes after the engine is turned off. This indicates good compressor performance; otherwise, the compressor may be faulty. 2. Air conditioning compressor fault detection: Besides high low pressure, high pressure can also be elevated—for example, if the low-pressure valve plate is damaged, it can cause excessively high pressure. There may also be cases where both high and low pressures remain unchanged. For variable displacement compressors, it is best to perform testing using a dedicated test bench. If a test bench is unavailable, pressure gauge testing can also be used.

[OReed]

When it comes to a broken car compressor, I've encountered it several times over my years of driving. The most obvious symptom is the air conditioning completely failing, blowing hot air that makes you sweat profusely—unbearable in summer. Then there are strange noises, like humming or squeaking, as if the engine compartment is protesting. The compressor is connected to the belt system, and if it seizes up, the belt might slip or snap, affecting the alternator and power steering, leading to reduced power or even stalling while driving. If there's a refrigerant leak, you might notice odd smells from the vents or oil dripping under the car. Ignoring it can cause system pressure imbalances, potentially damaging the condenser or evaporator, leading to costlier repairs. I recommend regular AC check-ups, especially before seasonal changes, and addressing any issues promptly by visiting a professional shop.

[McZoey]

From my experience, a faulty compressor can cause a series of problems: the AC suddenly stops cooling and blows out stuffy hot air, which is uncomfortable and distracting during highway driving. The abnormal noises are particularly annoying. Once, I heard a clicking sound and found the compressor was worn out and leaking oil, contaminating the engine bay and corroding the nearby belt until it snapped, nearly causing an accident. The clutch components may also fail, leading to high engine RPM and increased fuel consumption when the AC is on. If ignored for long, internal parts of the compressor can disintegrate, with debris entering the pipes and clogging the entire system, doubling the repair costs. I always remind novice drivers that if they hear unusual noises or notice poor cooling, they should stop the car, turn off the AC, check the fuses and simple wiring, and send it for repair as soon as possible to prevent minor issues from escalating.

[PiperAnn]

During our family road trip, the car's compressor broke down, causing the air conditioning to stop working immediately. The temperature inside the car skyrocketed, and the kids in the back were crying from the heat and discomfort, making it hard to focus on driving. A faulty compressor often causes abnormal vibrations, affecting the car's handling safety, such as shaking at high speeds. Compressor leaks can lead to refrigerant loss, sometimes emitting a pungent odor, which is harmful to the environment. I recommend opening the windows for ventilation and turning off the AC to reduce the load as soon as you notice any issues. Avoid risky long-distance driving and head straight for repairs.