the pedal goes to the floor and I already changed and bleed master cylinder

Asked by Feb 05, 2014 at 05:43 PM about the 2000 Pontiac Grand Am SE

Question type: Maintenance & Repair

I bleed the lines after changing master cylinder twice and it was good for a day.. now the pedal goes to the floor again?

6 Answers

228,685

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

4 out of 4 people think this is helpful.
18,885

Did you bench bleed the master cylinder first?

yes two different new master cylinders, checked for leaks in the lines, checked calipers, and the rear drums with no apparent leaks...

18,885

But did you bench bleed the master cylinders before installing?

yes

18,885

This will need bled first with a computer like a snap on motus and then bleed all brakes.

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