Truck Repair: Hydraulic Clutch Bleeding, gmc sierra 350, clutch pedal

Question
I have a 95 GMC Sierra, 350 with 5-speed. The slave cylinder went out so I replaced it. The local auto-parts specialist/burger-flipper gave me the wrong part, so the clutch line sat open for a coulpe of days. Now everything is back together but there is no resistance in the clutch pedal at all. I tried bleeding the system, fluid is coming to the bleed screw on the slave cylinder when it's depressed, but the cylinder is not moving. The line from the master to the slave is a snap-in type with keeper pins, so loosening the lines and bleeding a section at a tiime isn't working. And the bleeder screw on the slave is not the nipple type like what is found on brake cylinders. Any ideas besides a gas-soaked rag and a match? Thank you.

Answer
Hi Jason,
Sometimes they can be contrary.
Try loosening the bleeder screw, remove the master cyl cap, fill the master cyl, make sure the clutch pedal is up, go get a cup of coffee, come back in a few minutes and fill the master reservoir if it is down a little, tighten the bleeder screw, and then use short strokes on the clutch pedal to tease it. Look in the reservoir to see if any bubbles come up, and tease some more.

Make sure the plunger in the master cylinder is not stuck foreward. You should be able to feel the rod contact the piston if you operate the pedal with a hand, and feel for it.

A pressure bleeder is another alternative.

Van