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89s10 2.5 2wd clutch/slave cylinder problems sam clark 11-19-09  
Hi there, i have an 89s10 2wd 2.5L. i was taking off up a hill when my clutch pedal became stuck in the up position, so I inspected the clutch master cylinder and found that it was leaking near the push rod inside the firewall (i knew i had a leak i had refill the resivoir every 2 or 3 days). So I got a new clutch master cylinder and replaced it, and i tried several methods of bleeding it, but I never got any pressure, and the pedal is still very spongey and goes down very easily. (ive tried gravity bleeding, and pumping the pedal a 1000 times, as well as trying to bleed it like you would your brakes) I spent 4 days bleeding the CMC several different ways with no change

Now Im not sure what to do, my slave cylinder is not even a year old (the guy i bought truck from said he replaced it) which it looks new, but I am just not sure what to do now

if you have any helpful suggestions, i'd love to hear them

please email me at

thank you very much
Re: 89s10 2.5 2wd clutch/slave cylinder problems BUBBA THE BUS TECH 11-20-09  
OK as there are no other replies. I have never bled a S10. My Race car with its clutch hydraulics built of difrent makes and models requires this proceedure. I dont know if you can do this with you truck or not. I dismount the slave cylinder and push the rod into it until it bottoms. This forces fluid back to the master so I leave the top off and a pan underneath. I have some one very carefully pump it up until the rod is fully extended and repeat pushing it in. You have to be very carefull pumping it back up as it is very very easy to blow the slave apart. This is very Disney but it works well on my patched together mess. Good Luck
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