Brake Pedel Sinks To The Ground (Plz Help

kuyo · 10-04-2015, 06:12 PM

So I've been going crazy trying to fix my brakes!
I first got the brake fluid low light coming home 1 night, not paying attention I topped of my brake fluid with the wrong fluid.
My brake pedal started going to the floor like a clutch...It was time for new brakes anyways so I bout 4 new EBC rotors and front brake pads. Was to lazy to install them so I got all 4 rotors put on with brake pad change and a brake fluid flush for $150 at a shop down the street which i though was a steal. 2 days later my brake pedal starts to go to the floor again. A little bit more braking than before but it still sinks to the floor...Do I have air in my lines or is the problem still from adding a tad of the wrong brake fluid??? Was told by my club that the seals inthe master cylinder may probably need replaced. Just trying to confirm before I spend more money and still get the same results...

Any advice will help

Chuck33079 · 10-04-2015, 06:47 PM

I'd try bleeding it again before I started swapping out parts. It's most likely nothing to do with the different types of fluids.

I might be remembering wrong, but I seem to remember that if the abs block goes dry you need a shop with a consult machine to bleed that. Again, I could be wrong but it's worth a check after you bleed it.

POS VETT · 10-04-2015, 08:37 PM

That's a sign of master cylinder leaking internally.

Chuck33079 · 10-04-2015, 08:41 PM

Quote:

Originally Posted by POS VETT

That's a sign of master cylinder leaking internally.

It very well could be, but I'd always try the low hanging fruit first before I started swapping out parts.

Rusty · 10-04-2015, 11:26 PM

No visually leaks. Brakes have been bled. Master cylinder is shot.

10-04-2015, 06:12 PM	#1 (permalink)
kuyo Base Member Join Date: Apr 2012 Location: NW Houston Posts: 124 Drives: 370 Nismo Rep Power: 13	Brake Pedel Sinks To The Ground (Plz Help So I've been going crazy trying to fix my brakes! I first got the brake fluid low light coming home 1 night, not paying attention I topped of my brake fluid with the wrong fluid. My brake pedal started going to the floor like a clutch...It was time for new brakes anyways so I bout 4 new EBC rotors and front brake pads. Was to lazy to install them so I got all 4 rotors put on with brake pad change and a brake fluid flush for $150 at a shop down the street which i though was a steal. 2 days later my brake pedal starts to go to the floor again. A little bit more braking than before but it still sinks to the floor...Do I have air in my lines or is the problem still from adding a tad of the wrong brake fluid??? Was told by my club that the seals inthe master cylinder may probably need replaced. Just trying to confirm before I spend more money and still get the same results... Any advice will help

10-04-2015, 06:47 PM	#2 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29538	I'd try bleeding it again before I started swapping out parts. It's most likely nothing to do with the different types of fluids. I might be remembering wrong, but I seem to remember that if the abs block goes dry you need a shop with a consult machine to bleed that. Again, I could be wrong but it's worth a check after you bleed it. kuyo likes this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

10-04-2015, 11:26 PM	#5 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,868 Drives: 2011 Nismo GM 6M Rep Power: 2684436	No visually leaks. Brakes have been bled. Master cylinder is shot. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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10-04-2015, 08:37 PM	#3 (permalink)
POS VETT Track Member Join Date: Apr 2015 Location: Columbus OH Posts: 612 Drives: Z34\|C4LT4\|C6Z06\|V25 Rep Power: 3366	That's a sign of master cylinder leaking internally.