GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Sonoma Pickup - 2WD 🢒 Transmission/Transaxle 🢒 Clutch 🢒 Clutch Pedal Hard to Push

Diagnostic Aids

If the clutch pedal is hard to push inspect for proper lubrication to the clutch pedal assembly and inspect for the hydraulic lines for blockage or crimping. Also inspect for worn or damaged parts on the master cylinder or the wrong type of fluid and inspect the clutch disc for worn or damaged parts.

Test Description

The number(s) below refer to the step number(s) on the diagnostic table.

  1. This step explains there parts and the operation of the clutch system.

    2.

  2. This step inspects for blockage or crimping of the hydraulic line.

    3.

  3. This step inspects the clutch disc for a worn or damage clutch disc.

Step

Action

Yes

No

1

Did you review the clutch symptom operations and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Clutch

2

Check the clutch pedal in order to ensure that it is properly lubricated.

Does the clutch pedal need lubricating?

Go to Step 3

Go to Step 4

3

Lubricate the clutch pedal.

Is the pedal still hard to push?

Go to Step 4

System OK

4

Inspect the clutch hydraulic line for blockage or crimping.

Is the hydraulic line blocked or crimped?

Go to Step 5

Go to Step 6

5

Replace the clutch hydraulic line. Refer to Master Cylinder Replacement .

Did you find and repair the condition?

System OK

Go to Step 6

6

Inspect the clutch master cylinder for binding.

Is the clutch master cylinder binding?

Go to Step 7

System OK

7

Replace the master cylinder. Refer to Master Cylinder Replacement .

Did you find and repair the condition?

System OK

Go to Step 8

8

Inspect the concentric slave cylinder for binding.

Is the concentric slave cylinder binding?

Go to Step 9

System OK

9

Replace the concentric slave cylinder. Refer to Clutch Concentric Actuator Cylinder Replacement .

Did you find and repair the condition?

System OK

Go to Step 10

10

Inspect the clutch disc for wear.

Is the clutch disc worn?

Go to Step 11

System OK

11

Replace the disc plate. Refer to Clutch Assembly Replacement .

Did you find and repair the condition?

Go to Step 12

Go to Diagnostic Aids

12

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 1