Please help. My honda accord 98 has clutch pedal problem. Everytime I press the pedal it has no pressure and it can't come back itself which mean it stuck on the floor. I checked on the clutch fluid, it still in full level. I've replaced Clutch Master Cylinder, it doesn't help at all. Anyone who knows why and how to fix it, please help.

Thanks a million in advanced!

 

Did you bench blead your clutch master cylinder before installing it? If so it may be your slave cylinder, try replacing it.

 

Hi, thank you for your quick respond. What do you mean by bench blead cmc? maybe i didn't do that.

 

Your CMC should have come with a couple of hoses and plastic fittings, you use these to get all the air out of the CMC before installing it. If you don't do this you won't have peddal pressure.

 

If you didn't bench-bleed it, sometimes you can get it just by bleeding A TON of fluid.

Sometimes you can reverse-bleed it. Use a syringe or something to pump fluid INTO the slave bleeder screw.

Better yet, did you bleed the clutch system at all?

 

yo speed you are thinking of brake master with hoses and fittings .i have replaced a **** loads of clutch masters factory and non-factory and none have come with hose and fittings .........
.yo seiko open up the bleeded screw at slave cylinder and let it gravity bleed for a while, close it have a friend pump up clutch pedal and you open up bleeder screw at slave cylinder make sure to keep clutch master reservoir full of fluid you might have to try this several times till pedal comes up .... it is just like bleeding brakes
as for bench bleeding clutch masters it is not as critical as brake master as a matter of facts i have never bench bled a clutch master and have never had a problem

 

No one has asked if you have done any other clutch maintenance besides replacing the cmc. You will need to use two people like the others mentioned but I like to pump the foot pedal with my hand, dont push it all the way down and pull it back up all the way. As mentioned, just like bleeding brakes, pump it a few times...hold it down...have the bleeder person release pressure at the slave cylinder...pump it a few more times...hold it down...have the bleeder person release pressure at the slave cylinder.

While the bleeder person is doing the bleeding make sure they are monitoring the slave cylinder in action, does the pistion push on the push rod to release the pressure plate from the clutch disc. The original question of was any other clutch work done is due to the possibilty of improper parts use or aftermarket upgrades with improper parts use.

Slave cylinder push rod too short, throwout bearing wrong part number (size), twin plated clutch requires different periferrals. Just wondering.

Duane in Japan