For 1990-2009 cars

### Hydraulic Clutch

The hydraulic clutch mechanism engages and disengages the clutch system. The hydraulic clutch mechanism consists of the following components:

The clutch release system consists of the following components:

• | Clutch master cylinder

• | Remote reservoir

• | Tubing

• | Clutch actuator cylinder assembly

A pushrod controls the clutch master cylinder. The cylinder is mounted to the front of the dash. The clutch actuator cylinder assembly is mounted inside the clutch housing.

The clutch hydraulic system is serviced as two components, the clutch master cylinder assembly and the clutch actuator cylinder assembly.

Depressing the clutch pedal moves a piston inside the clutch master cylinder and displaces hydraulic clutch fluid to the clutch actuator cylinder. A hydraulic force is developed from the release bearing pressing on the diaphragm spring. The force of the diaphragm spring on the clutch disc decreases as the force of the release bearing increases. This process continues until the clutch is disengaged. The hydraulic clutch system does not require adjustment.

### Hydraulic Clutch Fluid

When adding fluid or refilling the system after service operations, use only Hydraulic Clutch Fluid GM P/N 12345347 or an equivalent fluid that meets DOT 3 specifications.