Brakes loses all pressure once the car is started

2014 CHRYSLER 200
40 MILES
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AGUTIERREZ
  • MEMBER
  • 1 POST
I changed out the brake calipers and the master cylinder on the car and bled the brakes all the way around. I made sure no lines were clogged. All four brake calipers are receiving fluid and and I get pressure while car is off, but once the vehicle is started it loses all pressure and no more brakes.
Jun 2, 2018 at 9:41 PM
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CARADIODOC
  • CAR REPAIR CONTRIBUTOR
  • 34,308 POSTS
There are ways to prevent air from getting into the lines and having to bleed the entire system, but if that happened, I suspect the car has anti-lock brakes. If it does, you will need a scanner to command the ABS computer to open two valves so those chambers can be bled.

You might also take a peek at this article for more information:

https://www.2carpros.com/articles/brake-pedal-goes-to-the-floor
Jun 3, 2018 at 1:07 AM
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