What Causes a Sudden Increase in Resistance in the Manual Transmission Clutch Pedal?

[PeytonRose]

The reasons for a sudden increase in resistance in the manual transmission clutch pedal are as follows: Clutch cable wear and aging: For cable-operated clutches, the usual cause of stiffness or inability to depress is due to wear and aging of the clutch cable, leading to jamming. This requires replacement at a professional repair shop. Hydraulic fluid aging: For hydraulic clutches, the common causes of stiffness are aging hydraulic fluid, or rusting and aging of the clutch master cylinder or slave cylinder. This is the most frequent issue. Additionally, a lack of hydraulic fluid can prevent the clutch from resetting, making it difficult to depress. Foreign objects at the pedal: Vehicles equipped with electronic clutches are relatively rare in the market, and clutch jamming is uncommon. The primary cause is foreign objects obstructing the clutch pedal, which can be resolved by removing the obstruction.