Will all the brake fluid leak out if one of the chambers is leaking?

Tiny
DAVE213
  • MEMBER
  • 2019 HYUNDAI ENTOURAGE
  • 1.0L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 50,000 MILES
If a dual circuit system had a leak on one of its circuits, does the brake fluid all leak out after repeated pumping?
Do you
have the same problem?
Yes
No
Monday, January 11th, 2021 AT 7:55 PM

9 Replies

Tiny
ASEMASTER6371
  • EXPERT
Good evening,

The answer is no. Only the chamber with the leak will drain and the other will remain at its level.

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor

I attached the diagram of the system for you when you are looking for leaks.

Roy

Was this
answer
helpful?
Yes
No
Monday, January 11th, 2021 AT 8:21 PM
Tiny
DAVE213
  • MEMBER
But will the brakes still be firm or not? And how long can someone drive with the spare circuit?
Was this
answer
helpful?
Yes
No
Tuesday, January 12th, 2021 AT 12:07 AM
Tiny
ASEMASTER6371
  • EXPERT
No, the pedal will be half at best and the stopping distance will be greatly increased.

I would not drive it that way at all. I would get it fixed ASAP.

Roy
Was this
answer
helpful?
Yes
No
Tuesday, January 12th, 2021 AT 3:24 AM
Tiny
DAVE213
  • MEMBER
So no floor touching.
I think it gives the same symptoms of failing master cylinder if I am not wrong.
Well, how far can you go if one of the circuit is broken?
Was this
answer
helpful?
Yes
No
Tuesday, January 12th, 2021 AT 3:26 AM
Tiny
ASEMASTER6371
  • EXPERT
Again, I would not drive it with the pedal that low. It is an extreme safety hazard and needs to be repaired.

I would not drive more than the distance to a repair shop.

Roy
Was this
answer
helpful?
Yes
No
Tuesday, January 12th, 2021 AT 3:38 AM
Tiny
DAVE213
  • MEMBER
Yes, I know usually in single circuit system ince the fluid is over the brakes stop working.
Does it take the same time for the dual system to stop working or take longer?
Was this
answer
helpful?
Yes
No
Tuesday, January 12th, 2021 AT 3:42 AM
Tiny
ASEMASTER6371
  • EXPERT
When you have only one portion working, the pedal reaction time and distance for stopping are greatly increased as I stated before.

Roy
Was this
answer
helpful?
Yes
No
Tuesday, January 12th, 2021 AT 3:49 AM
Tiny
DAVE213
  • MEMBER
Thanks Roy.
Was this
answer
helpful?
Yes
No
Tuesday, January 12th, 2021 AT 3:54 AM
Tiny
ASEMASTER6371
  • EXPERT
You are welcome.

Always glad to help.

Roy
Was this
answer
helpful?
Yes
No
Tuesday, January 12th, 2021 AT 4:00 AM

Please login or register to post a reply.

Sponsored links