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How to replace clutch slave cylinder - 1992 GMC Sierra

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Posted on Jan 02, 2017



  • 486 Answers

SOURCE: my clutch goes to the floor, can't shift. Have

Provided the mechanical portion of our clutch is good then you still have some air somewhere in the hydraulic system and it's often very hard to get out. One trick I use is to use my hand vacuum pump with a little cover I made to cover the fill hole on top of the master cylinder. I pump up about 15" of vacuum on the system and often that will pull out the few air bubbles submerged in the fluid that prevent the system from working. Once you get most of the air out usually the rest will work out if you press and release the clutch pedal several times. Sometimes it works very quickly, sometimes I've fought them for an hour or more to get back to a normal pedal. Of course if you have an actual mechancial problem inside the bellhousing with the pressure plate or disc then nothing you do on the outside will work until that is repaired.

Posted on Jul 02, 2010


James Young

  • 4044 Answers

SOURCE: how to replace a clutch and a slave cylinder

I recommend you get the Haynes repair manual on your vehicle. That will explain how to do it correctly.

Posted on Jul 12, 2010


Donald DCruz

  • 17130 Answers

SOURCE: The clutch in my 1995

While the car is parked /switched off are you able to slip in the gears easily ? if so the fault is as you have confirmed of the clutch not able to disengage the transmission drive when the engine starts.
Now to confirm if this is the slave or the master the hydralics must be checked, check to see the movement of the slave, see that the system is bled and there is pressure in the system, make sure there is no leak or spongy feeling., if so it will be good to open and check the system to confrim without deciding to change with a blind feeling. In this case an overhauling of the system will be enough with the repair kit or the slave unit if found to leak.
So before you just go ahead please check to confirm

Posted on Oct 02, 2010


  • 161 Answers

SOURCE: replaced clutch then it seemed like there wasnt

release bearing may have packed up....sure you bled slave an master proper and there are differnt internal line sizes so not all slave/masters will work together....should replace as a pair with a proper sized line....probably release bearing or fork issue.

Posted on Mar 20, 2011

Rene J Solis

  • 1796 Answers

SOURCE: !992 GMC - were is

Here is where the bleeder screw is on the SLAVE/SECONDARY cylinder and the instructions to bleed the system.
Hydraulic System GMC SIERRA 1988-95 Models

  • Fill the clutch master cylinder with the proper grade and type fluid. Raise and support the vehicle safely.
  • Remove the slave cylinder retaining bolts. Hold the cylinder at about 45° angle with the bleeder at the highest point.
  • Have and assistant fully depress the clutch pedal. Open the bleeder screw. Repeat until all air is expelled from the system.
  • Be sure that the fluid level remains full in the clutch master cylinder throughout the bleeding procedure.
  • Install the slave cylinder.


Good Luck!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

Posted on Mar 20, 2011

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