Clutch pedal sticks to floor

LAZAROJHR16

MEMBER
1996 HONDA PRELUDE
2.2L
4 CYL
2WD
MANUAL
186,000 MILES

The clutch pedal sticks to the floor when I press it. I bought the car in this condition, I have changed both the slave and master cylinder but bleeding it has not fix the issue. The pedal is still soft and the clutch fluid is not leaking from the reservoir. I don't know what the problem could be.

4 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Hi,

Was the car being driven prior to the purchase? Do you know if this happened all at once? When the clutch is depressed, are you able to shift the transmission? When you release the clutch, does the vehicle move?

Let me know. There could be something broken internally such as the release lever or even an issue with the pressure plate.

Take care,
Joe

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Sunday, December 22nd, 2019 AT 8:57 PM

LAZAROJHR16

MEMBER
3 POSTS

The car was not running when I bought it. I had to replace the main relay, fuel pump and filter, spark plugs, distributor, and all fluids. The car now starts and idles good with no check engine light. I have not tried putting it in gear since the clutch just goes to the floor so I think the car would just launch forward. When it is off I can go through all the gears and I don't hear anything strange. I inspected the clutch pedal and everything seems fine. I have the cars shop manual with all the diagrams and everything seems to be connected correctly to the pedal. It doesn't look like anything is missing. Could a hole in the clutch line cause this? I'm going to carefully inspect the line tomorrow morning. Also, the new master cylinder did not come with a new reservoir. I don't see it leaking but could the hose from the reservoir some how cause this?

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Sunday, December 22nd, 2019 AT 9:35 PM

LAZAROJHR16

MEMBER
3 POSTS

I should also add that I first changed the slave cylinder and tried bleeding the system and no fluid was coming out. That's when I changed the master cylinder and tried to bleed it and fluid is coming out but after over an hour of pumping the pedal only half the reservoir fluid was gone and the pedal felt exactly the same.

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Sunday, December 22nd, 2019 AT 9:48 PM

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

If the line or sensor was leaking, you would have lost fluid, at least more than you mentioned. When the engine is running and the clutch is depressed, see if it will go into gear. If the clutch isn't engaged, either it won't go or it will grind. I need to know if it is releasing or not. Also, if it easily goes into gear, slowly pull up on the clutch pedal with your foot to see if the car moves.

I attached a pic below. I highlighted the release bearing and release fork. If the car sat for a long period of time, something may be rusted or even broken. These are the next things to check if we can't get a pedal.

Also, let me know how you are bleeding the system. You need a helper to do it. The helper should pump the clutch pedal a few times, hold it to the floor, then you should open the bleeder on the slave, and the pedal should not be released until you retighten the bleeder.

Let me know if that is how you are doing it.

Joe

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