Clutch Pedal Hard to Push

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Cause	Action
DEFINITION: The clutch pedal requires high effort to operate. Review the Symptoms - Clutch and perform the necessary inspections.
Incorrect hydraulic fluid	Inspect for the correct fluid in the master cylinder. Refer to Hydraulic Clutch Bleeding . Replace the clutch master cylinder and clutch actuator cylinder. Refer to Clutch Master Cylinder Replacement and Clutch Actuator Cylinder Replacement (NV3500/NV4500 Transmissions) or Clutch Actuator Cylinder Replacement (ZF S6-650 Transmission) . Flush the hydraulic system and fill with the correct fluid.
Contaminated hydraulic fluid	Inspect the hydraulic fluid for water. Inspect the hydraulic fluid for dirt or debris. Flush the hydraulic system and fill with the correct fluid. Refer to Hydraulic Clutch Bleeding .
Clutch pedal binding	Inspect the pedal for binding. Repair or replace the pedal. Refer to Clutch Pedal Replacement .
Kinked or damaged clutch hydraulic pipe	Inspect for a kinked or damaged hydraulic hose. Repair or replace the clutch hydraulic hose. If it is a 5 speed transmission, refer to Clutch Master Cylinder Replacement . If it is a 6 speed transmission, refer to Clutch Actuator Cylinder Replacement (NV3500/NV4500 Transmissions) or Clutch Actuator Cylinder Replacement (ZF S6-650 Transmission) .
Clutch disc worn too thin	Replace the clutch assembly. Refer to Clutch Assembly Replacement .