Chevrolet Q&A

Ask Your Question

2004 Chevrolet Suburban 1500 Question: Had brake lines replaced to ABS unit. Now, the brakes on all four wheel lock up



pumpman800, Paramus, NJ, November 18, 2013, 10:19

error for stability control comes up. Mechanic has bled lines several times but same thing happens once you press brake pedal.
Any ideas for fixing problem?

1 Answer
Flag This
  • Answer #1

    G. T. Service Center (4245 Answers) , Stephenville, TX - (254) 638-3236
    ProfessorG November 18, 2013, 11:02

    Have the ABS autobleed function done with someone who has a Tech2 scan tool.

    Flag This
  • Reply

    pumpman800, November 23, 2013, 02:41

    It turns out that hydroboost unit had a leak and because rear seal in master was no good, power steering fluid was being pumped into master cylinder. The rubber in master swelled up and lines to calipers open under pressure but collaping and not releasing.

    Flag This