Question about Pontiac Grand Prix

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Breaks go to the floor

My break peddle goes down to the floor there is no air in the lines and no leeks in the lines

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  • 268 Answers

Then you have a massive leak somewhere as the brake peddle should not go all the way to the floor without some low break fluid indication. I would check brakes at each wheel as something isn't right or your not seeing it. Have someone pump the pedal and look to see if after the wheel is removed that the brake actually tightens and loosens. Remember that 4 wheels means 4 brakes, but master brake cylinder (where you add brake fluid) could be bad.
breaks go to the floor - tandem-master-cyl2.gif


Posted on May 06, 2014

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Posted on Jan 02, 2017

Murphybanton
  • 2004 Answers

SOURCE: put in all 4 new brakes the brakes still do not

Check the master brake cylinder.

Posted on Aug 24, 2009

  • 1374 Answers

SOURCE: losing break fluid, cannot see a leak?

You probably have an internal leak in the master cylinder. Brakes are no joke have this corrected asap. Topping it off isn't the cure. Becareful!

Posted on May 25, 2010

emissionwiz
  • 75797 Answers

SOURCE: Replaced master break cylinder bench

You have air in the system, no matter that you bench bled the Master cylinder, air got in the system that is the only cause of this symptom other than a defective new part. Follow the guide lines below to bleed brakes.

To properly bleed the brakes, start with a couple of 8-ounce cans of fresh brake fluid. An unopened can has a long shelf life. An opened can should be discarded within a few weeks. Get the vehicle up in the air and remove all four wheels, you might be able to do this with the wheels on if you can swing a wrench on the bleeder valves. PLease read through the instructions completely before you start work, do not let the Master cylinder run dry of fluid.

Have a helper pump up the brake pedal, then open the right rear brake bleeder and bleed it until you don't hear anymore air bubbles coming out and the fluid stream is steady, next move to the left rear wheel and repeat, then to the right front and bleed that wheel cylinder, then repeat at the left front wheel cylinder. A tip hear, soak the bleeders with WD40 before you try to crack them open, DO NOT STRIP/ROUND OFF THE CYLINDER BLEEDERS, Use a box end wrench to get a good bite on the bleeders. When all the air is out of the system the fluid will be steady and not make a spurting noise, do not run the master out of fluid!

Posted on Jan 23, 2011

  • 414 Answers

SOURCE: 1989 chevy breaks i have

I am fairly certain you have a bad master cylinder. I had a chevy truck which emptied
the back bowl completely and the cause of this was a failed seal on the rear of the
master cylinder. The fluid was sucked into the engine through the power booster and
burned off while driving. If the back bowl for the rear brakes is empty, then this may
be the cause.

Posted on Jun 26, 2011

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I am fairly certain you have a bad master cylinder. I had a chevy truck which emptied
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If you had your breaks done recently take it back and tell them to bleed your brakes. Here some issues I have found before:

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