Have noticed the same thing on two 2005 MCS. Does not appear to be a problem; they just make that noise.
I'm not quite sure how youare hearing that if you are pressing the pedal, more likely the click is the clutch switch clicking that allows you to start the vehicle, if it truly is the slave cylinder, down on the bellhousing making the click sound it could be loose, or making a clicking sound as it connects with the clutch lever.
depress the clutch pedal to the floor several times
This is typically done for unsynchronized transmissions. You get up to the RPMs you want to get to, depress the clutch just enough to take the vehicle out of gear, release the clutch, depress it again, go into the next gear, and release the clutch. With an unsychronized transmission, you'll have to time your shifts accordingly.
clutch
No. Clutch is what disengages the motor from the transmission. Shift would be changing gears. You should depress the clutch to shift from one gear to another.
Cable clutch - when you depress the clutch lever or pedal, you pull at a Cable whose other end is attached to the fork that operates the pressure plate in the clutch assembly. Hydraulic clutch - when you depress the clutch lever or pedal, you push at a piston in a Master cylinder. Pushing at the piston pressurizes the hydraulic fluid in the master cylinder, and in the hose leading to a Slave cylinder placed at the clutch. The piston in the slave cylinder extends and operates the pressure plate in the clutch assembly.
Run car at idle and press / depress clutch. If RPMsfluctuate it's hydraulic.
When you depress the clutch pedal all the way down the clutch brake stops the input shaft from rotating. This allows the transmission to be put in gear. Never depress the clutch fully ( all the way to the floor) when the truck is moving in any gear. The clutch brake is about the size of a compact disc and cannot stop the input shaft when the truck is moving in gear. This will destroy the clutch brake.
You may have some bare wires that are shorting out on the clutch pedal. Get under the dash and check it out.
The slave cylinder is a hydraulic device that acutuates the clutch. As you depress the clutch pedal it's movement sends hydraulic pressure to the clutch to release it. It's like stepping on the brakes only withe clutch.
The throwout bearing is bad. This bearing sits in the center of the clutch. Replacing it requires removing the transmission from the car, and it would be a VERY good time to replace both the clutch and the pressure plate while you have it apart.
depress the clutch with your heel instead or put a splint on your ankle and drive your manual like you normally would. if that doesn't work then i don't know what will.