DOT 3 brake fluid is affecting the clutch hydraulic system.

Drain the clutch hydraulic system, refill the system with clutch hydraulic fluid (GM P/N 12345347 or equivalent), then bleed the air from the system.

Refer to Hydraulic Clutch Bleeding .

The clutch pedal bushings are worn or dry.

1. Inspect the clutch pedal bushings for proper condition.
2. If the clutch pedal bushings are found to be dry, then lubricate the bushings using GM P/N 1052497 or equivalent.
3. If the clutch pedal bushings are found to be worn, then replace the bushings.

Refer to Clutch Pressure Plate and Clutch Driven Plate .