GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Chevy C Cab/Chassis HD (GMT 400) 🢒 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 the clutch hydraulic lines for blockage or crimping. Inspect for worn or damaged parts on the master cylinder or the wrong type of fluid, and inspect the clutch disc. Inspect for measurement or pedal push of 18 kg (40 lb) normal to 36 kg (80 lb) hard.

Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. This step explains the clutch system, components and the clutch system operation.

    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

Inspect the clutch hydraulic hose and pipe for blockage or crimping.

Is the hydraulic hose and pipe blocked or crimped?

Go to Step 3

Go to Step 4

3

Replace the clutch hydraulic hose and pipe in the master cylinder assembly. Refer to Clutch Master Cylinder Replacement .

Is the clutch pedal hard?

Go to Step 4

System OK

4

Inspect the clutch master cylinder for binding.

Is the clutch master cylinder binding?

Go to Step 5

System OK

5

Replace the master cylinder. Refer to Clutch Master Cylinder Replacement .

Did you find and repair the condition?

System OK

Go to Step 6

6
  1. Remove the transmission. Refer to Transmission Replacement in Manual Transmission NV-4500.
  2. Inspect the concentric slave cylinder for sticking and being seized.

Is the concentric slave cylinder binding?

Go to Step 7

System OK

7

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

Did you find and repair the condition?

System OK

Go to Step 8

8

Inspect the clutch pressure plate for being faulty.

Is the clutch pressure plate worn?

Go to Step 9

System OK

9

Replace the disc plate. Refer to Clutch Assembly Replacement .

Did you find and repair the condition?

Go to Step 10

Go to Diagnostic Aids

10

  1. Install the transmission. Refer to Transmission Replacement in Manual Transmission NV-4500.
  2. Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 1