What are the reasons for the clutch not returning?

[Elle]

The reasons for the clutch not returning: 1. Air may have entered the clutch pipeline system, causing excessive clutch travel and poor return; 2. The clutch fluid is too dirty with impurities, causing severe internal wear of the clutch master cylinder or blockage of the return oil hole, preventing the clutch from returning; 3. As the vehicle mileage increases, the clutch return spring may have insufficient elasticity or break, causing the clutch pedal not to return; 4. Excessive wear gap in the clutch linkage push rod leads to poor return. The clutch is located in the flywheel housing between the engine and the transmission. The clutch assembly is fixed to the rear plane of the flywheel with screws, and the output shaft of the clutch is the input shaft of the transmission.