Brakes do not work

Tiny
SAVERIO LUCIFERO
  • MEMBER
  • 1990 NISSAN 300ZX
  • V6
  • RWD
  • AUTOMATIC
  • 60,000 MILES
Hi, so my dad and I started up the car for the summer and the brakes go all the way down like there is no pressure on the brakes. All we did so far was bleed out the brakes to let air come out and added new brake fluid. But still the brakes go all the way down. Please help.
Sunday, April 2nd, 2017 AT 9:58 AM

6 Replies

Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Maybe it is the master cylinder.

The Medic
Was this
answer
helpful?
Yes
No
Sunday, April 2nd, 2017 AT 10:03 AM
Tiny
SAVERIO LUCIFERO
  • MEMBER
  • 14 POSTS
Oh yeah, there are air bubbles coming out of the master cylinder where the brake fluid is.
Was this
answer
helpful?
Yes
No
Sunday, April 2nd, 2017 AT 10:20 AM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Maybe this could help!

It is long and I have another link within it.

https://www.2carpros.com/questions/1998-ford-f-150-cant-get-brakes-bleed

Let me know how this works out for you.

The Medic
Was this
answer
helpful?
Yes
No
+1
Sunday, April 2nd, 2017 AT 2:21 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,149 POSTS
This is a classic brake master cylinder failure problem, here is a guide to help you get the problem fixed.

https://www.2carpros.com/articles/how-to-replace-a-brake-master-cylinder

Please let us know what you find so it will help others.

Best, Ken

Was this
answer
helpful?
Yes
No
+1
Monday, April 3rd, 2017 AT 7:55 PM
Tiny
SAVERIO LUCIFERO
  • MEMBER
  • 14 POSTS
Hey thanks for the answer me and my dad bleed the master cylinder in front on a vice with a master cylinder bleeding kit and it worked fine we saw all kinds of air bubbles coming out we pushed until their was no more air bubbles and re installed it and it work right away my brake pedal were as hard as a rock again thank you
Was this
answer
helpful?
Yes
No
Wednesday, April 5th, 2017 AT 7:36 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
Wonderful!

Seems like such a minute thing, a few air bubbles in the system.

Once they are gone, such a big difference!

Come back to see us, or since you are fixed, send your buddies over to our garage!

The Medic
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
+1
Wednesday, April 5th, 2017 AT 8:03 PM

Please login or register to post a reply.

Related Brake Pedal Goes To The Floor Content

Brake Pedal Goes to the Floor
GUIDE
Brake Pedal Goes to the Floor
Experiencing a brake pedal that goes to the floor can be a frightening situation, particularly when you need to stop quickly. The automotive brake system is a hydraulically...