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Jeep CJ5 Clutch Slave Cylinder

Possible Causes of Jeep CJ5 Clutch Slave Cylinder Problems

As part of the manual transmission, the small, hydraulic Jeep CJ5 clutch slave cylinder is used to press against the clutch fork or the pressure plate. It also receives brake fluid from either the clutch master cylinder or the brake master cylinder. The clutch slave cylinder also keeps the clutch pedal stable and functional. While it is more of a supporting part of the system, without this component, your clutch won't work properly. Should you have problems with your clutch, you should give the slave cylinder a look.

Clutch pedal travels to the floor with little or no resistance

If you notice the clutch pedal getting to the floor without you having to use that much effort, then the clutch slave cylinder might be bad due to an external or internal seal leak. An external seal leakage is more common so troubleshoot that first by inspecting the component for leakage. If there is a leak, rebuild the clutch slave cylinder or replace it with a new one.

Stuck clutch

If the clutch fails to release when you have fully depressed the clutch pedal, this can prevent an operator from shifting the transmission, which could then lead to gear grinding. If this happens to your car, the clutch slave cylinder might be leaking. A defective cylinder might fail to move the throw-out bearing, which is responsible for disengaging the clutch from the flywheel. If your car's clutch slave cylinder is leaking, try bleeding it. If this does not correct the problem, you might have to replace the component.

Other troubleshooting tips

Note that a bad clutch master cylinder will show similar symptoms, so make sure that you look closely at both components in order to properly determine which one is the problem.

To bleed the clutch slave cylinder, you will need a tool called a bleeder that comes with the component. Have a friend depress the clutch pedal as you open the bleeder to let the air out of the slave cylinder. Once the pedal is pushed all the way to the floor, close the bleeder, and ask your friend to slowly let the clutch pedal up. Repeat this procedure until there is no more air in the system-your friend will know this when the clutch pedal does not feel soft and spongy anymore.

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  • Tips on Taking Care of Your Jeep CJ5 Clutch Slave Cylinder 27 February 2013

    As part of the system that transfers the engine's torque and energy to the transmission every time you brake or switch gears, the clutch slave cylinder is not a component to neglect. While it does not have a significant function of its own, the clutch system will not fully function without it. To prevent any clutch problems and future accidents related to them, you must know how to take care of the clutch slave cylinder. If you don't know where to begin, then try these tips:


    Flush the clutch system regularly.

    The number one maintenance procedure to keep the clutch slave cylinder efficient is to regularly flush the system. It is recommended that you do this every two years or every 12,000 miles, whichever comes first. To flush the clutch system, you must first access the bleeder on the slave cylinder. Before setting out to do this procedure, make sure that air has not contaminated the system. If it has, then you must first bleed out the clutch slave cylinder before flushing.


    Bleed the clutch system when needed.

    If you find that your clutch system has air inside its hydraulic circuits-you will know this symptom when you feel that the clutch seems spongy-then you have to bleed it out. Just like when flushing out the system, you will also need access to the bleeder on the clutch slave cylinder. Remember to use some towels or rags to cover and protect the top shelter from any brake fluid splatter. Use the appropriate hydraulic oil when refilling the reservoir.


    Do not let the brake fluid reservoir get empty.

    Whether you are flushing the system or bleeding the clutch slave cylinder, it is important that you always keep an eye on the fluid level in the reservoir. If the level gets too low or empty, air will get into the system and affect the clutch's functionality. While flushing or bleeding the clutch, keep topping up the reservoir with brake fluid while watching the color of the liquid draining into the container-where you are pouring the old fluid into.