GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 GMC C Sierra - 2WD 🢒 Transmission/Transaxle 🢒 Clutch 🢒 Pedal Stays on Floor (Clutch Disengaged)

Diagnostic Aids

Inspect the clutch pedal for a loose or worn clutch pedal spring. If the clutch pedal stays to the floor you should check the master cylinder for proper fluid level or faulty parts. Also check the hydraulic hoses or pipes for damage or even leaks. Inspect the clutch diaphragm springs to see if they are broken.

Test Description

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

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

    2.

  2. This step inspects the hydraulic lines for kinks, dents or other damage.

    3.

  3. This step inspects for the correct fluid level in the reservoir.

    4.

  4. This step inspects for a faulty release bearing.

Step

Action

Yes

No

DEFINITION: Low clutch pedal or pedal stays on the floor.

1

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

Go to Step 2

Go to Symptoms - Clutch

2

Inspect to see of the master cylinder pushrod has fallen off the clutch pedal.

Has the master cylinder pushrod fallen off the clutch pedal?

Go to Step 4

Go to Step 3

3

Inspect the clutch hydraulic line for leaks.

Did you find and repair the condition?

Go to Step 11

Go to Step 6

4

Correctly install the master cylinder pushrod. Refer to Master Cylinder Replacement .

Does the clutch pedal still stay on the floor when disengaged?

If the vehicle is equipped with the ZF S6-650, you must manually pull the clutch pedal back, there is no return spring on this assembly.

Go to Step 5

Go to Step 6

5

Inspect the reservoir for fluid.

Is there fluid in the reservoir?

Go to Step 7

Go to Step 6

6

Fill the reservoir with fluid.

Does the clutch pedal still stay on the floor when disengaged?

Go to Step 7

Go to Step 11

7
  1. Remove the transmission. Refer to the following:
    2. •  Transmission Replacement in Manual Transmission NV-3500
    •  Transmission Replacement in Manual Transmission NV-4500
    •  Transmission Replacement in Manual Transmission ZFS6-650
  2. Inspect the clutch release bearing.

Is there binding on the clutch release bearing?

Go to Step 8

Go to Step 9

8

Free up the clutch release bearing or replace the clutch release bearing. Refer to Clutch Concentric Actuator Cylinder Replacement .

Does the clutch pedal still stay on the floor when disengaged?

Go to Step 9

System OK

9

Inspect the master cylinder.

Inspect the master cylinder and the quick connect fitting for leaks.

Is the master cylinder faulty?

Go to Step 10

System OK

10

Replace the master cylinder. Refer to Master Cylinder Replacement .

Did you find and repair the condition?

Go to Step 11

Go to Diagnostic Aids

11

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 1