Diagnostic Aids
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
If the clutch pedal is hard to push, inspect for proper lubrication to the clutch pedal assembly and the clutch hydraulic lines for blockage or crimping. Inspect for worn or damaged parts on the master cylinder or the wrong type of fluid, and inspect the clutch disc. Inspect for measurement or pedal push of 40 lbs. (18 kg) normal to 80 lbs. (36 kg) hard.