Mikeyb Posted April 19, 2016 Report Share Posted April 19, 2016 2011 dodge journey awd. Upgraded the front brakes to 2013 brakes. New master cylinder and new rear calipers and brakes. New front calipers and brakes. has 90,000 miles and the pedal is not as firm as it use to be before the upgrade.The pedal is pushed down the floor quite easily pressure is not as high as it was before. Brake fluid in the master will be high one day and next day it will be little lower and next it will be back where it was. The boot on the cap was sucked out and I had to push it back in. Air in the lines? Any ideas? Quote Link to comment Share on other sites More sharing options...
Camper Posted April 19, 2016 Report Share Posted April 19, 2016 It could be air in the lines. Also it possible , that the o-ring in master cylinder whent bad and require dto be replaced. jkeaton and dhh3 2 Quote Link to comment Share on other sites More sharing options...
dhh3 Posted April 20, 2016 Report Share Posted April 20, 2016 x2 ^^ Quote Link to comment Share on other sites More sharing options...
Mikeyb Posted April 25, 2016 Author Report Share Posted April 25, 2016 Brakes were bleed. The abs was not bleed since I do not have a scan tool. Air trapped in the abs? Any opinions? Thanks dhh3 1 Quote Link to comment Share on other sites More sharing options...
dhh3 Posted April 25, 2016 Report Share Posted April 25, 2016 ABS is an electronic function of engaging and releasing the brakes at a high rate of speed. The idea came from airplanes landing. I would say it would be in your master cylinder. Quote Link to comment Share on other sites More sharing options...
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