GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value

Yes

No

DEFINITION:Low clutch pedal or pedal on the floor.

1

Inspect the clutch hydraulic line.

Is the hydraulic line bursting or leaking?

--

Go to Step 2

Go to Step 3

2

Replace the master cylinder and hydraulic line assembly. Refer to Master Cylinder Replacement .

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

--

Go to Step 3

System OK

3

Inspect the reservoir for fluid.

Is there fluid in the reservoir?

--

Go to Step 5

Go to Step 4

4

Fill the reservoir with fluid.

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

--

Go to Step 5

System OK

5

Inspect the clutch release bearing in the actuator cylinder for binding.

Is there binding on the clutch release bearing?

--

Go to Step 6

Go to Step 7

6

Lubricate and 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 7

System OK

7

Check 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 8

Go to Step 9

8

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

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

--

Go to Step 9

System OK

9

Inspect the master cylinder.

Is the master cylinder faulty?

--

Go to Step 10

Go to Step 11

10

Replace the clutch master cylinder as needed. Refer to Master Cylinder Replacement .

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

--

Go to Step 11

System OK

11

Inspect the clutch diaphragm spring.

Is the diaphragm spring weak or broken?

--

Go to Step 12

Go to Step 13

12

Replace the clutch pressure plate. Refer to Clutch Assembly Replacement .

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

--

Go to Step 13

System OK

13

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

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

--

Go to Step 14

--

14

Replace the master cylinder. Refer to Master Cylinder Replacement .

Does the clutch still stay on the floor when disengaged?

--

--

System OK