Brake job question.
#21
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An update. Still searching for the source of the problem. ![Icon Bubbles](https://www.jaguarforums.com/forum/images/smilies/icon_bubbles.gif)
But so far I established:
Most likely it's the booster or the master cylinder.
If you disconnect the vacuum line from the booster the brakes are "released". So, I had thought it's the booster failure but then decided to do a check. I disconnected the vacuum line and took the car for a 6 miles ride on a free road with some 50-0 hard stops . The issue appears again. Not as fast nor as bad as with the booster connected, but it's definitely progressing while driving.
I also tried to diagnose the booster by the way the JTIS says and nothing wrong with it according to the booster test.
![](http://s019.radikal.ru/i614/1210/99/e94d77170424.jpg)
Any ideas or thoughts? Master cylinder was clogged when I pushing the pistons back?
![Icon Bubbles](https://www.jaguarforums.com/forum/images/smilies/icon_bubbles.gif)
But so far I established:
Most likely it's the booster or the master cylinder.
If you disconnect the vacuum line from the booster the brakes are "released". So, I had thought it's the booster failure but then decided to do a check. I disconnected the vacuum line and took the car for a 6 miles ride on a free road with some 50-0 hard stops . The issue appears again. Not as fast nor as bad as with the booster connected, but it's definitely progressing while driving.
I also tried to diagnose the booster by the way the JTIS says and nothing wrong with it according to the booster test.
![](http://s019.radikal.ru/i614/1210/99/e94d77170424.jpg)
Any ideas or thoughts? Master cylinder was clogged when I pushing the pistons back?
![Icon Hide](https://www.jaguarforums.com/forum/images/smilies/icon_hide.gif)
Last edited by Nardoswiss; 10-27-2012 at 11:58 PM.
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