Clutch pedal goes to floor when pressed

When I press on the clutch pedal with my foot, the pedal goes to the floor. And the brake fluid keeps leaking out after pressure is applied to the clutch. The clutch master cylinder and the clutch slave cylinder have been replaced. I was told the master proportion valve for the clutch brakes was not replaced.
Experienced mechanics share their insights in answering this question :
With the symptoms you have described, the most likely cause is a leak in the clutch hydraulic system. If there is a leak on the system it causes air to enter. Since air is not able to be compressed the clutch pedal remains stuck to the floor when it is pressed down. With everything going on with this car, it is unsafe to be driven until the clutch has been repaired. A qualified technician, like one from YourMechanic, will be able to confirm the cause of your clutch issue and perform the needed repairs to get you back on the road.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Broken Clutch Cable: The most common reason to have a clutch pedal that goes all the way to the floor is a broken clutch cable. This is extremely common, particularly on older cars. Replacing the cable will allow you to engage the clutch and change gears once more.
The cup seals or the cylinder bore may be worn. Any time that the brake pedal of a vehicle is fading towards the floor, internal leaking or cup seals being bypassed must be considered. A fading pedal that has no external leak is one of the most common master cylinder symptoms caused by the cup seals.
Why Is it Sticking? Your clutch pedal connects to its operating system via a cable. If the cable becomes stretched, then it loses some of the tension it needs to work. And if the cable breaks, then the clutch loses its connection and may stay down and fail to rise at all.
Clutch: Clutch pedal falls to the floor without resistance

If there is no or little resistance to the clutch pedal, the most likely cause is a faulty clutch master cylinder. This is the unit that creates the pressure forcing the hydraulic fluid to more the clutch slave cylinder which disengages the clutch.

Air in the brake line(s) is the most common cause of a soft/spongy brake pedal. If air gets into the brake lines, it can prevent brake fluid from flowing properly, causing the brake pedal to feel spongy or soft. If the brakes are soft or spongy, this is a good time to change or flush the brake fluid.
Pedal and hold

Hold. Bleed. Repeat. Loud callouts of “pump it up” or “pressure” and “hold it down” can make the garage or driveway sound like a Sunday morning at the Waffle House, but the two-person procedure is a tried and true way to get the brakes bled quickly.

Frequent causes why the clutch doesn`t disengage correctly include faults in the release system (clutch release bearing, slave cylinder, clutch lever), a jammed pilot bearing, or non-compliance with important installation requirements.
KEEP clutch pedal depressed. Rear wheels will be turning. Stomp on brake pedal, rear wheels will stop turning. IF clutch stays stuck, engine will stall.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Clutch pedal goes to floor when pressed
ANSWER : With the symptoms you have described, the most likely cause is a leak in the clutch hydraulic system. If there is a leak on the system it causes air to enter. Since air is not able to be compressed the clutch pedal remains stuck to the floor when it is pressed down. With everything going on with this car, it is unsafe to be driven until the clutch has been repaired. A qualified technician, like one from YourMechanic, will be able to confirm the cause of your clutch issue and perform the needed repairs to get you back on the road.

My clutch pedal is stuck to the floor. A while back I started hearing noise in my clutch when I pressed it. The car drive fine, th
ANSWER : Your vehicle uses a hydraulically operated clutch system. The first thing to do is check the fluid level in the master cylinder and check for leaks although leaks at the slave cylinder might not be apparent. Internal seal failures can cause the same problem that one might experience (i.e., no clutch operation) with visible leaks and a low fluid level. The noise may be due to a failed clutch release bearing. Due to the noise and the misoperation, if the slave cylinder turns out to be faulty, you will probably need a new clutch as well as hydraulic components. The cause of the fault that you are reporting can be pinpointed if you request a hydraulic clutch system diagnostic. If you request that diagnostic, the responding certified mechanic will get this diagnosed and let you know exactly what must be done. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Clutch pedal goes to the floor and doesn’t return
ANSWER : Hello, thanks for your question. You could watch the clutch fluid as it mentions in the test, but this really doesn’t tell you much. Most of the time this is caused by a bad clutch master cylinder. If the fluid level is low the first thing to do would be to locate the leak. If the fluid is full then I watch to see that he clutch slave is moving when the clutch is pressed. If it is and if it is releasing but the pedal stays down then that is another reason to change the clutch master. If the clutch slave and fork are not releasing then it may have an internal clutch failure. If you would like help getting this inspected or repaired, consider YourMechanic, as a certified mechanic can come to your home or office to perform the inspection and make or suggest any repairs needed.

Why does my clutch pedal sink to the floor and dosent come back up?
ANSWER : Hi – there are 2 main causes for the clutch going all the way to the floor. First – check that the return spring on the clutch pedal is in place. Second – I see you bled the system – bleed the system again. This is how I would do it – use a short length of hose connected to the bleeder screw, run that hose into a cup half full with recommended fluid…fill the reservoir, then have one person pump the pedal while the other opens the bleeder screw and watches until NO BUBBLES come out (and makes sure the reservoir doesn’t run dry). Then close the screw fill the reservoir to the mark, and test her out. If you would consider, YourMechanic can send a certified technician to you and assist you in troubleshooting this clutch issue.

Clutch pedal stays to floor. Replaced master cylinder. Clutch push rod broke. Also do I need to change slave cylinder
ANSWER : If you have an issue with your clutch pedal going to the floor, the slave cylinder is normally the cause of this circumstance.

Also, if the push rod has been broken the first step would be to track down a new one because that push rod is a very necessary part of the clutch pedal system.

Once a new push rod has been located and installed, I would recommend having a new slave cylinder installed as well.

If you are in doubt about this repair, I would recommend having it performed by a qualified professional, such as one from YourMechanic. One of our mobile technicians will be able to come to your home to diagnose the issue with your clutch pedal and replace your clutch slave cylinder as necessary.

I have no clutch it goes to the floor and I cannot find the slave master cylinder for the clutch master cylinder please send pics
ANSWER : The reservoir supplying the fluid to both cylinders is the brake master cylinder reservoir. However, adequate fluid there means nothing as a diagnostic. The clutch slave and/or master cylinder could be leaking internally (no visible external leak) or there could be air in the clutch hydraulic system that will have to be bled out. There are other mechanical causes of the clutch pedal going to the floor but in your circumstances that hydraulic circuit should be looked at first. If you desire a diagnostic, and repair of this issue, right at your location, please request a clutch system inspection. If you request that inspection, the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

My clutch pedal goes to the floor and doesn’t return
ANSWER : Check clutch pedal assembly bracket for breakage or mis-position. It’s also possible that the pressure plate is to blame. However, before diagnosing that you do have to confirm the hydraulics work. Even though the master and slave are "new", these may be rebuilt parts. If not properly rebuilt, the master could easily have an internal leak which would explain your circumstance. If, in your application, you are able to get some direct indication that the lever off of the pressure plate is in the return position, and you cannot see any fluid leakage under any of the boots that seal the hydraulics, and you are certain that you have bled and re-bled and there can’t possibly be any trapped air, I would suggest trying a different master and slave because they could be defective. Alternatively, a certified mechanic could be dispatched by YourMechanic to take a first hand look at this. If you desire to go that route, please request a clutch inspection and the responding mechanic will get this resolved for you.

I can’t go into 4th or 5th gear and clutch does not engage after a recent clutch job, clutch release while in gear does nothing.
ANSWER : I would rule out the axle not being pushed all the way in. That would effect all speeds and gears. That you can engage gears other than 4th and 5th leads me to 2 m possibilities:
1. Shift linkage mis-adjusted.
2. Possible bent shifter fork internally.

If it feels like you can engage 4th and 5th with the engine OFF, then I would lean towards a clutch release issue.