Chevy S10 2.2L Clutch Master and Slave Cylinder CC649004

This is a complete clutch hydraulic assembly for 1994-1995 Chevy S10 and GMC Sonoma pickups with the 2.2L four-cylinder and a manual transmission. The master cylinder, line and slave cylinder come together as one piece, so there are no line fittings to break loose. It crosses to CC649004, CM140984, CRS022 and PC701052.

On these trucks the master and slave are joined by a single line, and the parts stores sell them as one assembly. Replacing the whole system at once means a leak in the old master or slave does not come back a month after the other half was changed.

Signs the clutch hydraulics are failing: the pedal sinks slowly to the floor or stays down, the pedal feels soft or spongy, the reservoir level keeps dropping, fluid is wet on the firewall or the bottom of the bellhousing, or it grinds going into gear because the clutch no longer releases all the way. If bleeding brings the pedal back for a day and then it goes soft again, a seal is leaking and the part needs replacing, not more bleeding.

Before install, line up the new assembly with the old one: master mounting studs, pedal pushrod end and the slave mount should all match. Route the line the same way the old one came out, away from the exhaust. Bleed or check the system until the pedal is firm and returns all the way, and fill the reservoir with the fluid type printed on the cap.