Calling all Teves brake system experts!

Topic: Calling all Teves brake system experts! (Read 4136 times) previous topic - next topic

Calling all Teves brake system experts!

Reply #30 – September 11, 2010, 08:32:16 AM

Quote from: Loaded87IROC;334693

Ok, so I have a new problem. I replaced the brake lines (Thanks HCOR!) and filled up the reservoir with fresh brake fluid. I took off the back wheels to start the brake bleeding but when I had my assistant hold the pedal down after the accumulator filled up (about 20 seconds) nothing came out when I opened the bleeder screw. I tried several times on both times and not a drop of fluid came out of either side. What am I doing wrong?

Sorry somehow I missed this thread...

I had the same problem trying to bleed a system with replacement unit, what I did was use a vacuum pump on the rear bleeders till I was sure all the air was out... Unless you figure out how to seal the threads on the bleeders when pumping the fluid, you will always get some bubbles, just have to judge by the amount of fluid pulled from the reservoir...

BTW as already mentioned the accumulator will only cause a short cycle not a continually hard pedal... They have a internal bladder that if ruptured allows it fill with fluid eliminating any reserve...

Calling all Teves brake system experts!

Reply #31 – September 11, 2010, 09:28:15 AM

Thanks for commenting TurboCoupe50. I saw the post you made in the thread I posted a link to earlier where somebody had the same problem. I went out and bought a vacuum pump but still wasn't able to pull any fluid from the rear with it. Unfortunately, the original poster of that link never updated with his solution to the problem.

I was able pull some fluid from the rear bleeders after disassembling the prop valve and putting it back together (temporarily) without the spring. Hopefully my new one will be here today.

Calling all Teves brake system experts!

Reply #32 – September 14, 2010, 10:26:57 AM

whats the update?

Calling all Teves brake system experts!

Reply #33 – September 14, 2010, 10:59:03 AM

Well its fixed but I don't know how or why. New prop valve came in Saturday, I installed it Sunday, but it didn't fix the problem. I put the old valve back in with the insides if the new valve and still nothing. I kept trying to bleed the rear brakes when all of a sudden brake fluid came shooting out. The only thing I can figure is there was a blockage somewhere in the hard line and it worked itself out after my repeated attempts to bleed the brakes. Still have an abs light on but I will worry about that later. Thanks for all the help!

Calling all Teves brake system experts!

Reply #34 – September 14, 2010, 12:13:04 PM

check the rubber flex lines, thet can get an internal rip in them and act as a one one valve....

also is the yellow abs light just on? or is it flashing? if flashing it should flash x amout of times then pause then repeat. if this is the case its a bad ABS sensor, and the flash count will let you know what wheel has the prob.

Calling all Teves brake system experts!

Reply #35 – September 14, 2010, 12:21:29 PM

One of the first things I did was to undo the connection where the metal line meets the rubber line at the rear axle to see if I got fluid there. I didn't, so I eliminated a collapsing rubber line from my line of suspects.

The ABS light is just on solid. I understand there is a connector you can use to pull codes like the EEC connector in the trunk but I haven't looked for it yet.