What you'll need:
* New clutch fluid: DOT 3 or DOT 4 brake fluid. Use fresh fluid; old fluid can contain moisture that damages the system.
* Clutch bleeder wrench: An appropriate size wrench for the bleeder valve on the clutch slave cylinder. Usually 8mm or 10mm.
* Clear tubing: A length of about 2 feet of clear plastic tubing that fits snugly over the bleeder valve.
* Jar or container: To catch the old fluid.
* Socket wrench (if needed): You may need a socket to access the bleeder screw.
* Shop rags or paper towels: To clean up spills.
* A helper: Absolutely essential for this process.
Steps:
1. Locate the Bleeder Valve: The clutch slave cylinder bleeder valve is located on the clutch slave cylinder itself, typically bolted to the transmission bell housing. You might need a flashlight to see it clearly. It's usually a small valve with a hex head.
2. Prepare the System: Open the clutch master cylinder reservoir cap. Check the fluid level and top it off if necessary.
3. Attach the Tubing: Place the end of the clear tubing over the bleeder valve nipple. Submerge the other end of the tubing in the jar filled with a little brake fluid. This helps prevent air from entering the system.
4. Have Your Helper Pump the Clutch: Have your helper slowly and smoothly pump the clutch pedal several times. They should *not* hold the pedal down. Each pump should be a full depression and release. Explain to them that this is crucial for effective bleeding.
5. Open the Bleeder Valve: As your helper pumps the clutch pedal, carefully crack open the bleeder valve slightly with your wrench. You'll see bubbles in the tubing as air is expelled.
6. Close the Bleeder Valve: Before your helper completely releases the clutch pedal, close the bleeder valve.
7. Repeat: Repeat steps 4-6 several times until no more air bubbles are visible in the tubing. You might need several cycles, even up to a dozen.
8. Check Fluid Level: Check the fluid level in the master cylinder reservoir frequently and add more fluid as needed. Never let the reservoir run completely dry.
9. Test the Clutch: After bleeding is complete, have your helper test the clutch pedal. It should feel firm and have a good engagement point. If the pedal feels spongy or if the clutch slips, you may need to bleed it again.
10. Clean Up: Clean up any spilled fluid and replace the reservoir cap securely.
Important Considerations:
* Air in the System: Air in the clutch hydraulic system will cause clutch slippage and poor engagement. Thorough bleeding is essential.
* Fluid Type: Using the wrong type of brake fluid can damage the system.
* Master Cylinder: If the bleeding process doesn't solve the problem, the master cylinder might need to be replaced or rebuilt.
* Slave Cylinder: A leak or failure in the slave cylinder can also cause clutch problems.
If you're not comfortable performing this procedure yourself, it's always best to take your vehicle to a qualified mechanic. Working on the clutch hydraulic system requires careful attention to detail to avoid introducing more air into the system or damaging components.
