GM Service Manual Online
For 1990-2009 cars only

Cause

Action

DEFINITION: The clutch pedal requires high effort to operate.

Review the Symptoms - Clutch and perform the necessary inspections.

Incorrect hydraulic fluid

  1. Inspect for the correct fluid in the master cylinder. Refer to Adhesives, Fluids, Lubricants, and Sealers .
  2. Flush the hydraulic system and fill with the correct fluid.
  3. Replace the clutch hydraulic system if the incorrect fluid is mineral based.

Contaminated hydraulic fluid

  1. Inspect the hydraulic fluid for water.
  2. Inspect the hydraulic fluid for dirt or debris.
  3. Flush the hydraulic system and fill with the correct fluid. Refer to Adhesives, Fluids, Lubricants, and Sealers .

Clutch pedal binding

  1. Inspect the pedal for binding.
  2. Repair or replace the pedal. Refer to Clutch Pedal Replacement .

Clutch pedal spring worn

Replace the clutch over center spring.

Kinked or damaged clutch hydraulic pipe

  1. Inspect for a kinked or damaged hydraulic hose.
  2. Repair or replace the clutch hydraulic hose. Refer to Hydraulic Clutch Hose/Pipe Replacement .

Clutch disc worn too thin

Replace the clutch assembly. Refer to Clutch Pressure and Driven Plate Replacement .