[ekaxel]

My brake pedal was going down if I held pressure on it. Just bled/flush with ATE blue. didn't change the symptom. I guess I'm stuck going to the dealer again. UGH!!!

 

[Gonzo]

Perhaps some more bleeding is needed. Sounds like there is some air in the lines.

 

[Eric L.]

Yes sounds like a leak in your brake system somewhere. I recently changed to ATE Superblue and found the pedal is noticeably firmer now. Good luck solving the problem, ekaxel.

 

[ekaxel]

Gonzo:
Air in the lines results on a spongy pedal. When I am standing at a light the pedal goes steadily down to the stop with continued pressure. The pedal is firm and stops well in normal driving.

IMHO, the pedal going down is a sign of fluid leaking past a seal in the master cylinder...

 

[hfelknor]

IMO, if there is no leakage of fluid to the outside world, then the MC is the only culprit.

Homer

 

[ekaxel]

That's it Homer!

 

[zebelkhan]

IMO, if there is no leakage of fluid to the outside world, then the MC is the only culprit.

Homer

As a former mechanic I also agree with the diagnosis.

 

[Gonzo]

You guys are good.... I agree too (wth Homer's approval)

 

[hfelknor]

Approval granted.

Homer

 

[gargoyle]

My master cylinder went out last August (search for my thread) and replaced under warranty, so it does happen. The brake pedal went all the way down, with nothing happening. I could pump it and get pressure. Very scarey, so get it fixed ASAP!