How to Determine if a Car Compressor is Faulty?

1 Answers
BeckettRose
07/30/25 7:17am
Methods to determine if a car compressor is faulty: 1. Air conditioning not cooling: When the AC switch is turned on, the engine speed does not increase. If air conditioning is not needed, removing the compressor's belt can enhance power by more than half a gear without any adverse effects on the car; 2. Exhaust valve damage: If the compressor's electromagnetic clutch coil is burnt out, generally, the only solution is to replace the compressor if the intake and exhaust valves are damaged. The electromagnetic clutch coil can be replaced if burnt; 3. Compressor fails to rotate: There may be unusual noises during rotation, abnormal pressure, high pressure too low, or low pressure too high; 4. The air conditioning compressor is not powered by electricity but is driven by the engine's gears or belt. When the air conditioning is off, the compressor is idling.
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