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no pressure on clutch pedal

 
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Old 03-20-2011, 06:13 PM
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no pressure on clutch pedal

so i was driving yesterday and i noticed my clutch felt weird. when i step onto the pedal it didnt have pressure til like 2inches to the ground but i was still able to switch gears and all and drive home but it seemed like it was getting worst and worse. anyways i tried driving it today and there was 0 pressure on the pedal. it would go straight all the way down and would come back. i checked under the car and there was no leaks, and i topped of the clutch reservoir with dot3. im probably going to try bleeding it out when i have time.

anybody experience this problem too? any help would be appreciated
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Old 03-20-2011, 06:55 PM
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Re: no pressure on clutch pedal

i had a small leak in the resovior and after driving alot in traffic i pushed out alot of the fluid. i would start by checking the entire system for leaks. goodluck
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Old 03-20-2011, 07:08 PM
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Re: no pressure on clutch pedal

First thing get under your dash and look at the mounting bracket. It houses the pedal and two switches. It'll probably be a little rusty looking. You have two bronze switches that relay the pedal position to the ecu. Above the uppermost switch there is a bolt that holds that assembly up. If that bolt came loose then youd still be able to shift normally (Until it falls out like mine did) but it'll feel very off. Just get under there and check it, takes a little flexibility but an easy thing to check. If you push the pedal in while your down there and that bracket moves AT ALL, then tighten that bolt in as tight as you can. A little loctite wouldnt hurt either.
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Old 03-20-2011, 08:24 PM
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Re: no pressure on clutch pedal

i just checked and all the screws and bolts seems to be fine and all tight :(
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Old 03-20-2011, 08:27 PM
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Re: no pressure on clutch pedal

It sounds like your slave cylinder is bad.



Its the brown part with the black line leading to it with two bolts holding it to the trans bell housing.

As you depress the clutch have someone watch for movement on the slave cylinder. None = bad component somewhere in hydraulic system.
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Old 03-20-2011, 08:42 PM
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Re: no pressure on clutch pedal

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Originally Posted by LudimusPrime View Post
It sounds like your slave cylinder is bad.



Its the brown part with the black line leading to it with two bolts holding it to the trans bell housing.

As you depress the clutch have someone watch for movement on the slave cylinder. None = bad component somewhere in hydraulic system.

i just checked it and there was movement. like the black thing was moving(pumping) when my buddy was stepping on the clutch.

what tests can you do to check if the slave cylinder is still good?
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Old 03-20-2011, 08:45 PM
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Re: no pressure on clutch pedal

If you dont have pressure yet somehow the slave cylinder moves im not too sure what to tell you. Ive never had such a scenario to troubleshoot. How old is the clutch, are you sure it isnt toast?
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Old 03-20-2011, 08:51 PM
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Re: no pressure on clutch pedal

when i floor the clutch theres still a bit of pressure like 1inch away from the ground and thats it, maybe not enough to engage the clutch to switch gears or something.

when it was still working it never slipped or anything and i tried launching from 2nd gear and worked just fine

i just imported the car from japan and it has 36XXXkm. 1995 prelude vtec
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Old 03-20-2011, 08:56 PM
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Re: no pressure on clutch pedal

Check the setting of the engagement on the clutch pedal. Im not quite sure myself how its done but it might be working itself out of spec.

Your OP mentions bleeding the clutch system of air, have you done that yet?

Last edited by LudimusPrime; 03-20-2011 at 09:01 PM.
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Old 03-20-2011, 09:08 PM
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Re: no pressure on clutch pedal

havent done that yet didnt have much time as i had work. will do it right away when i get home. im also going to release the clutch release lever.

thanks a lot for your help guys
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Old 03-20-2011, 09:10 PM
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Re: no pressure on clutch pedal

if you suddenly lost most of the pressure i would say that there is a leak, but you said you had some pressure, it was just really low to the floor, i would adjust the clutch pedal and see if that helps
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Old 03-20-2011, 09:18 PM
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Re: no pressure on clutch pedal

its so low though. like 1inch maybe, not even enough for me to shift gears. but ill check that after i bleed the clutch. its so weird becaise it was normal and clutch felt pretty solid til yesterday
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Old 03-20-2011, 11:22 PM
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Re: no pressure on clutch pedal

it just sounds like you have air in the lines.
stop listening to these other people who are jumping to conclusions and start simple with bleeding the system, then work your way up to the more expensive fixes.

I had this SAME exact situation come up a couple months back.
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Prelude is all about taking tight corners at 50 MPH
DIY- Main Relay removal/fix

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Last edited by pr0d1gy9; 03-20-2011 at 11:27 PM.
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Old 03-21-2011, 12:22 AM
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Re: no pressure on clutch pedal

I'm having the same issue :/ Let me know if you figure out the problem.
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Old 03-21-2011, 01:24 AM
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Re: no pressure on clutch pedal

How do you bleed the clutch? Hmmm this is an interesting thread.
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Old 03-21-2011, 02:04 AM
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Re: no pressure on clutch pedal

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Originally Posted by HondaVerno View Post
How do you bleed the clutch? Hmmm this is an interesting thread.
i know this was discussed in another thread about 3 weeks ago and there was a link on how to do it.
it's not hard but you need 2 people to make your life WAY WAY WAY easier
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Quote:
Originally Posted by DJ Prelude View Post
Prelude is all about taking tight corners at 50 MPH
DIY- Main Relay removal/fix

2002 Ford Focus ZX3
1992 Honda Prelude SI ----->LUDE LINKAGE HERE<-----(sold)
1993 Ford Taurus LX (sold)
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Old 03-21-2011, 02:11 AM
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Re: no pressure on clutch pedal

here we go. this was stickied sooooooooo ya... a little searching goes a long ways.

No more CLUTCH PROBLEM threads!!!
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Quote:
Originally Posted by DJ Prelude View Post
Prelude is all about taking tight corners at 50 MPH
DIY- Main Relay removal/fix

2002 Ford Focus ZX3
1992 Honda Prelude SI ----->LUDE LINKAGE HERE<-----(sold)
1993 Ford Taurus LX (sold)
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Old 03-21-2011, 03:44 AM
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Re: no pressure on clutch pedal

You dont need two people. Go to harbor freight and get the one man bleeder tool.

Its a reservoir with plastic tubing and a one way valve you put on the bleeder valve. Open the bleeder after you have the tubing attached. Pump the clutch, watch the level of the master cylinder keeping it topped off with new fluid until you see the new fluid come out the bleeder. You may need to empty the bottle a few times. No air and new fluid FTW.
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Old 03-21-2011, 03:48 AM
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Re: no pressure on clutch pedal

same thing happened to me, i checked the clutch fluid resevoir and it was empty. so i had to bleed the clutch, pump out the fluid and replace the fluid. search it up. also look for any leaks, loose tubes or anything
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Old 03-21-2011, 10:25 AM
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Re: no pressure on clutch pedal

Quote:
Originally Posted by pr0d1gy9 View Post
here we go. this was stickied sooooooooo ya... a little searching goes a long ways.

No more CLUTCH PROBLEM threads!!!





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