Hardest question ever: Clutch Hydrolic system, it keeps taking in air! spongey clutch. whats the probem?!?

Question

1987 Fiero (4 cyl). the master cylinder is in the front of the car. the slave is at the back of the car(mid engined). i've replaced the master & slave cylinder, and a small portion of the the line that connets to he slave. i've bled the system for hours and hours(literally, hoursand hours on end, this thing made me cry) no matter what i do, i get a nonstop stream of bubbles comingfrom the bleeder nipple.(I AM using the correct bleeding teqn. specific to the fiero (jacked he rear of the car, 3 people to bleed it.) when i disconnect the line that connects to the slave, and bleed it from there, i get a nice steady stream of fluid. as soon as i bleed it from the slave, i have air air air. i've tried bleeding the slave backwards as well, this also results in taking in air. keep in mind these things
-this is my second brand new slave cyl
-i've tried 2 differant bleeder nipples(maybe one was sucking air)
-i've made sure it isnt taking air from the connection to the slave(made rubber seal

Answer 1

Some people are confusing the clutch bleeding with the brake bleeding---two different systems but same technique. Best way to bleed is by gravity, master should be higher than the slave---remove the master cylinder cap and fill with fluid, make sure all the line connections are tight, put a clear plastic hose on the slave bleeder valve and run it into a glass jar that's 1/3 full of fluid--make sure the end of the hose is always under the fluid level in the jar.Crack open the bleeder valve a little--just enough to see fluid coming out and let the system bleed down---keep topping off the master---do not let the fluid level go down below the hole in the bottom of the reservoir or you'll have to start all over. Let it bleed like this for 20-30 minutes and close the bleeder valve, replace the master cap--try the clutch pedal and see how it feels. If still spongy, repeat. You may not get all the air out if some is trapped in a high point but it should eventually work itself out.

Answer 2

The fiero is a funny critter isn't it? Well after checking the lines from the resevoir to the cylinder, go to the parts store and get the cheapest brake bleeder they have, the cylinder bleeder will have a hose going into a bucket with a hose and the other end will go on the resevoir and you can do it yourself, no air can enter the system, worth every penny, and don't get rid of it when you are through, cause apparetly you haven't had the pleasure of bleeding the brakes on that thing yet. You WILL need that bleeder again.

Answer 3

Maybe there are some cracks, on your hydraulic pipes. The only way is to trace the source of the leak to solve this problem. Clean the whole system from the master cylinder to the wheel cylinder. Switch off the engine, get your friend to step & release the clutch pedal. Repeat the motion, look out for any spraying oil mist or any hissing sound.

Answer 4

Pressure bleeder, or vacum bleeder...Ford Explorers and others have the same problem. Sometimes you can remove the slave and leave the line attached, then use the backwards slave bleeding method, making sure the bleeder is the highest point.

The pressure bleeder is your best bet though (you might have to take it to a shop)

Answer 5

Check the front calipers and read wheel cylinder and bleed from the also. If you still have air make sure that all the fittings are tight also check ALL the lines even the one you replaced. Don't forget the caps, make sure the caps are on tight and make sure the caps seals are not damaged. Good luck.

Answer 6

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Answer 7

did u forget the 4 wheel cylinders....???