Ok, what I did first was the flushing bleeding thing and cleaning the rear brakes. After that, I felt a lot of difference while breaking because at the beginning I had to almost floor the pedal. Yesterday, since i had to replace the ball joints I also changed the front rotors and pads even when pads were ok, since the rotors had imperfections, the pads contours at disc form. Now my sidekick brakes as it suppose to brake.
You said that brake lines were bleed, in that case your brake fluid in reservoir should be clean and not look contaminated, if looks like it, flush the brake fluid.
Pray for be a simple thing to fix.
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