Is my clutch going out? 88' K5

[Charleshugh]

Hey guys I hope that all of you are well. I've been daily driving my 88' K5 for over 3 years now and I've been having clutch issues. I feel as if my clutch is on its way out. The catch point is much further down the pedal than it used to be, and when I've been on the highway for a while and take an exit the pedal is pretty weak and I have to pump it a few times for it to work for me. I replaced my master and slave cylinder about two years ago and I can't think of anything else that it would be. Any help would be greatly appreciated.
Thank you!

 

[Bent77]

It may be the hydraulic side of the system again
The newer replacement components are suspect

 

[ZooMad75]

The fact you have to pump it points to a hydraulic issue. Is the fluid low? If so where is it leaking from?

A worn out clutch won’t require pumping the pedal to get it to disengage.

 

[Fastereddie]

And I think the “catch point” will get higher with wear, not lower on the pedal. At least on a mechanical. The hydraulic may compensate for wear.

 

[ZooMad75]

And I think the “catch point” will get higher with wear, not lower on the pedal. At least on a mechanical. The hydraulic may compensate for wear.

That’s how it felt on the first clutch I fried many moons ago. It was so far gone it slipped like mad with the pedal all the way up. Needless to say I had some explaining to do once the big guy found it at home.

 

[tarussell]

Agreed with all that’s said up above.
If you’re having disc slippage or pressure plate clamping issues than this will help diagnose it - take off like normal and once you’re goi g to shift into third gear ( that’s up and to the right ) skip it and go to fourth and floor the gas pedal.
This creates more stress for the clutch assembly and if it’s weak it will slip under this condition.

But like said up above what you have described it very much indicates a hydraulic issue and not mechanical parts.

 

[Bent77]

Well, if it has enough nuts to slip it. That how you know in a track car if the clutch is done, it lays a turd in high gear

 

[imiceman44]

Agreed with all that’s said up above.
If you’re having disc slippage or pressure plate clamping issues than this will help diagnose it - take off like normal and once you’re goi g to shift into third gear ( that’s up and to the right ) skip it and go to fourth and floor the gas pedal.
This creates more stress for the clutch assembly and if it’s weak it will slip under this condition.

But like said up above what you have described it very much indicates a hydraulic issue and not mechanical parts.

I usually just hold the brakes and try to take off slowly lifting the pedal, if it's slipping it will not be able to move