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Clutch is now flat! Drops straight to the floor..Nothing works :(

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Old May 19, 2008 | 08:35 PM
  #1  
phatsindabuildin's Avatar
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From: Fairfax, VA, USA
Default Clutch is now flat! Drops straight to the floor..Nothing works :(

Hey honda-tech,

Well I have this damn problem now that the clutch just drops to the floor with the slightest impact and doesn't come back up. Initially the clutch pedal was just soft and hesistates to come up, and I might've bled it wrong initially and now it just drops. Now I'm 99% sure I'm doing the bleeding process right, and I tried bleeding it for two hours, but no use, still flat.

Then I got impatient and bought a vacuum pump. I kept the master cylinder full and must have refilled it at least 7 times! Here's the problem, AIR KEEPS COMING OUT AND OUT AND OUT. No matter how many long, I pump it, bubbles keep coming out and out like the top of a fish tank.

My only solution is there might be a hole somewhere, where air consistently gets in? But even then there should be a leak somewhere...any clues?
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Old May 19, 2008 | 08:49 PM
  #2  
tommy1387's Avatar
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From: Houston, Tx, U.S.A
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sounds like another slave cylinder problem to me.. when you look under the hood right in between the fans and the block on the tranny will be your slave cylinder.. look to see if its wet around there... let your car cool off though.. its hot.. trust me
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Old May 19, 2008 | 10:08 PM
  #3  
93sivtec's Avatar
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From: redding, ca, USA
Default Re: (tommy1387)

Also sounds like it could be a clutch master.Check right behind your clutch pedal where it connects to the firewall and see if the rubber is leaking.....u might need a flash light to see it Goodluck
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Old May 19, 2008 | 11:31 PM
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dudeitsahonda's Avatar
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From: beaumont, tx
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if you continue to fill up the reservor then there should me a noticeable "wet" spot somewhere along the clutch line/assembly... im actually waiting for the first half of my clutch line to come in because i have the same problem ( theres a hole in my line)
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Old May 20, 2008 | 12:10 AM
  #5  
socialistic's Avatar
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Are you 100% sure you're bleeding it correctly? You don't bleed the clutch like you do with brakes. You have someone pump the clutch pedal 10-15 times...then hold it down while you release the bleed screw to let the pressure off, then tighten, repeat several times. It's still wise to have a little hose connected to the bleed screw and the other end submerged in fresh fluid during this process. Don't submerge this hose into the fluid's bottle...you'll contaminate the good fluid that's left inside. Be sure to monitor fluid level in the reservoir as well...it drops gradually when bleeding the system.

As for problems with the slave or master cylinders...from personal experience I've noticed that a bad/seized slave cylinder will cause too much pressure, resulting in the pedal not being able to go down at all because the pressure has no where to go. A bad master cylinder can result in the pedal still being able to be pressed, and not return to normal position...any pressure still has places to go(towards slave, into reservoir, etc). I'd say the latter is your problem...so replace that master cylinder if no leaks or obvious damage is found elsewhere.

Good luck on the fix, keep us posted.
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Old May 20, 2008 | 04:35 AM
  #6  
k0shi's Avatar
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From: Honolulu,Las Vegas, HI/NV
Default Re: (socialistic)

definetly either the slave or the master, same thing happened to my girls 99 lude i changed the slave the problem went away for about a month then the master went and i changed that and now it works like a champ
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Old May 20, 2008 | 05:12 AM
  #7  
phatsindabuildin's Avatar
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From: Fairfax, VA, USA
Default Re: (socialistic)

socialistic, that bleeding process you mentioned is exactly what I did, for like a hour straight. Then I got pissed and tried a vacuum pump. No luck.

Regarding to master cylinder/slave cylinder, I've had this replaced a couple months ago, but I'm starting to get the feeling that it's just some cheap parts that the shop did for me. But before I get into that, I'm checking for leaks first. As of now, I completely filled up the master cylinder, locked the bleeder valve, and just let it sit there. If the fluid level changes, we can definitely assume a leak right??
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Old May 20, 2008 | 05:24 AM
  #8  
Giant_Bean's Avatar
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From: Broad Brook, CT
Default Re: (phatsindabuildin)

When using a vacuum pump, wrap the threads on the bleeder screw with teflon tape, or it will suck air past the threads.(Ask me how I learned this )
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Old May 20, 2008 | 01:45 PM
  #9  
Apex1972's Avatar
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From: Macon, GA, USA
Default Re: (Giant_Bean)

if you do not have any leaks where the lines connect on top of the transmission, I would say go ahead and replace the master and the slave cylinder. it is recommended to change both of them together.
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Old May 20, 2008 | 02:18 PM
  #10  
Fongman's Avatar
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From: Sactown, ca, usa
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i agree, check the master and the slave cylinder 1ST
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