SPONSORED LINKS

Fault messages after changing brake Master cylinder

Tiny
SHARJEEL LASHARIE
  • MEMBER
  • 2005 CADILLAC ESCALADE
  • 6.0L
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Hi,

I followed the instructions posted here to replace my brake master cylinder.
The brakes are working fine but as soon as I start the car, I get messages saying "service brake system" and "stability control disabled"

What could I have done wrong? And how can I fix it now?

Regards,
Sharjeel
SPONSORED LINKS
Monday, June 12th, 2017 AT 3:00 AM

7 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
I will need to know if any OBD11 codes are present. Also, did you bleed the brakes correctly?
Was this
answer
helpful?
Yes
No
Monday, June 12th, 2017 AT 4:54 AM
Tiny
SHARJEEL LASHARIE
  • MEMBER
  • 4 POSTS
Thanks for your reply. There are no ODBII codes. I thought I bled the system well.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, June 12th, 2017 AT 5:08 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Often this can be a bleed issue. I would go and re bleed again just to make sure and let me know what expires.
Was this
answer
helpful?
Yes
No
Monday, June 12th, 2017 AT 5:14 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,414 POSTS
Did you use a scan tool to bleed the ABS system? Any air that gets into that system will cause this.
Was this
answer
helpful?
Yes
No
Monday, June 12th, 2017 AT 6:28 AM
Tiny
SHARJEEL LASHARIE
  • MEMBER
  • 4 POSTS
Thank you again. I did not use a scan tool. Is normal bleeding going to get rid of the air or shall I start with bench bleeding?
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, June 12th, 2017 AT 10:48 PM
Tiny
SHARJEEL LASHARIE
  • MEMBER
  • 4 POSTS
OK. I managed to fix it. There were probably a few air bubbles trapped in the system and I managed to get them out by braking hard and holding the pedal for ten seconds and then letting go with a snap.
I had to do that 4-5 times and then on the last time, the warning lights went out and the system came on. I checked by switching the Stability control a few times. All is well now.
Thanks for your support.
Was this
answer
helpful?
Yes
No
Thursday, June 15th, 2017 AT 4:05 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help

Cheers, Ken
Was this
answer
helpful?
Yes
No
Saturday, June 17th, 2017 AT 1:50 PM

Please login or register to post a reply.

Related Brake Master Cylinder Replace/Remove Content

Brake Master Cylinder Replacement
GUIDE
Brake Master Cylinder Replacement
The brake master cylinder is the most important part of the brake system and is used to pressurize the hydraulic brake caliper and wheel cylinders which apply pressure to...

Sponsored links