What causes the clutch pedal to stay depressed and not return in a car?

[VanNora]

The following are reasons why a car's clutch pedal may not return after being depressed: 1. Air entering the clutch hydraulic system, resulting in excessive clutch travel and poor return. After repeatedly pressing the clutch pedal, the pedal may eventually rise - this is mostly caused by air entering the hydraulic system. In such cases, the cause of air entry should be identified and repaired promptly. 2. Contaminated clutch fluid with impurities, causing severe wear of the clutch master cylinder (piston) or blockage of the return oil hole, preventing clutch return. 3. As vehicle mileage increases, the clutch return spring may lose tension or break, causing the clutch pedal to not return. 4. Excessive wear gap in the clutch linkage push rod leading to poor return.