Why does the clutch behave abnormally when the air conditioning is turned on in a small car?
2 Answers
Reasons for abnormal clutch behavior when the air conditioning is turned on in a car: insufficient tension of the return spring, failure of the release bearing return spring, etc. The following details the causes: Insufficient tension of the return spring: When the engine is idling, there is friction noise in the clutch. First, lift the pedal with your foot to see if there is a return stroke. If there is a return stroke and the noise disappears, it is due to insufficient tension of the return spring. Failure of the release bearing return spring: If the pedal returns normally, check the free travel of the pedal. If it does not meet the requirements, it should be adjusted. If the free travel is normal, and there is a knocking or friction noise when the engine speed changes, it is due to the failure of the release bearing return spring.
The clutch of the car behaves abnormally when the air conditioning is turned on. I've encountered this issue several times. The main reason is that when the AC is turned on, the compressor starts and the engine load suddenly increases, putting more pressure on the entire transmission system. If the clutch disc is already worn or the clearance is improper, it's particularly prone to slipping or shaking under high load conditions. I recommend starting with simple checks, such as listening for unusual noises or feeling vibrations during startup; regular maintenance of the clutch is crucial, and timely replacement of worn parts can prevent trouble. Similar failures are quite common in older manual transmission cars—don't push it too hard, or you might end up stranded on the road, which is even more dangerous. By the way, in hot weather, prolonged use of the AC increases the load even more, so safe driving comes first.
