GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: Low clutch pedal or pedal on the floor.

1

Inspect the clutch release bearing for binding.

Is there binding on the clutch release bearing?

--

Go to Step 2

Go to Step 3

2

Lubricate and free-up the clutch release bearing or replace the clutch release bearing. Refer to Release Bearing Replacement .

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

--

Go to Step 3

System OK

3

Check to see if the master cylinder pushrod has fallen off the clutch pedal.

Has the master cylinder pushrod fallen off the clutch pedal?

--

Go to Sep 4

Go to Step 5

4

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

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

--

Go to Step 5

System OK

5

Inspect the diaphragm spring.

Is the diaphragm spring weak or broken?

--

Go to Step 6

Go to Step 7

6

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

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

--

Go to Step 7

System OK

7

Inspect the master and actuator cylinders.

Are the master and actuator cylinders faulty?

--

Go to Step 8

Go to Step 9

8

    • Replace the master cylinder as necessary. Refer to Master Cylinder Description .
    • Replace the actuator cylinder as necessary. Refer to Clutch Actuator Cylinder Replacement .

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

--

Go to Step 9

System OK

9

Inspect the hydraulic line.

Is the hydraulic line bursting or leaking?

--

Go to Step 10

Go to Step 11

10

Replace the hydraulic line. Refer to Hydraulic Hose Replacement .

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

--

Go to Step 11

System OK

11

Inspect the reservoir for fluid.

Is there fluid in the reservoir?

--

Go to Step 13

Go to Step 12

12

Fill the reservoir with fluid.

Does the clutch still stay on the floor when disengaged?

--

Go to Step 13

System OK

13

Inspect the master cylinder seal and the master cylinder center valve seal.

Is the master cylinder seal or the master cylinder seal faulty?

--

Go to Step 14

--

14

Replace the master cylinder. Refer to Master Cylinder Description .

Does the clutch still stay on the floor when disengaged?

--

--

System OK