Why does the car clutch pedal not return after being pressed down?

[Kelly]

Delayed or difficult clutch return is a serious issue, and the best solution is to have it inspected and repaired at a 4S shop or repair facility as soon as possible, as the actual situation may be more complex. Below are some specific reasons for delayed or difficult clutch return: 1. Air in the clutch hydraulic system: This causes excessive clutch travel and poor return. You can diagnose this issue yourself—if the clutch pedal rises only after repeatedly pressing it, it is mostly due to air entering the hydraulic system. In such cases, the cause of the air ingress should be identified and repaired promptly. 2. Contaminated or impure clutch fluid: This can lead to severe wear of the clutch master cylinder's internal piston or clogging of the return oil hole, preventing the clutch from returning. 3. Increased vehicle mileage: Insufficient tension or breakage of the clutch return spring can cause the clutch pedal to not return.