Clutch pedal travels too low
 

I had a hydraulic clutch failure. So far the master and slave clutch cylinders have been replaced. The clutch, pressure plate and throw out bearing were also replaced.

A road test revealed depressing the clutch pedal barely allowed me to shift into gear. The clutch pedal started to engage about an inch from the firewall.

What could be the source of the low level pedal engagement with the clutch? The re-bleeding of the clutch hydraulics provided no change in the clutch pedal engagement.

Ideas?


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Re: Clutch pedal travels too low
 

what brand/type Master and Slave? are you sure they are good? (even though they are new)

Re: Clutch pedal travels too low
 

89-1996 clutch master cylinder from Corvette America. It doesn?t say the maker. They listed as their brand.

On the slave cylinder GM parts bought one that was exactly like the one they removed. No idea of the brand.

I suspect either one is letting air into the system. I can?t be the thickness of the rug hindering engagement. The rugs have been around for many years.


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Re: Clutch pedal travels too low
 

What clutch disk did you install? If it's not the hydraulics, it could be a matter of needing to shim the pressure plate if the clutch disk is too thick. Marc Haibeck has an article that talks about Centerforce clutch disks and the recommended amount to shim them.

Re: Clutch pedal travels too low
 

Thanks for the tip. I have forwarded the article to the service manager at the Chevy dealership.

The clutch kit and clutch slave cylinder was purchased by the the Chevy parts department. I?ve been feeding your suggestions to the service manager. He is in contact with GM support in trying to solve the pedal travel and hard shifting. I also asked Bill at ZFDoc for his thoughts.


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Re: Clutch pedal travels too low
 

I have the best luck to reverse bleed the clutch hydraulics to get all the air out of the slave. Ask them if they did that. Simple things first.

Re: Clutch pedal travels too low
 

If you pump the clutch 50 times does the pedal get better?

Re: Clutch pedal travels too low
 

No, but his leg gets worse....:cheers: --Bob

Re: Clutch pedal travels too low
 

My suggestion was based off of a slave cylinder issue from years ago. Bill B told me to try that. The system is self bleeding

Re: Clutch pedal travels too low
 

So maybe BOTH will happen [emoji3]