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hydroboost

  1. Drivetrain
    I have an issue with my 2005 2500HD Duramax where the power steering and brakes don't work for the first few seconds after starting the truck. After a few seconds they start to work normally. I have replaced the power steering pump, all power steering hoses, and the hydro boost unit in the...
  2. 2007.5 + (GMT 900) Non Powertrain New Body Style
    Hey guys so I just replaced my steering gearbox with a redhead one and replaced my burnt up ps pump and after that my power steering was great but my brakes were pretty bad still.. so I did some reading on the forums and decided to replace the hydroboost with the LML one. Just got it all back...
  3. General Discussion
    New to this, but I’m a standstill.. had it looked at by a diesel mechanic and he said it’s the p/s pump, so here’s the problem when in the lower rpms driving or stopped if I press the brake or turn the wheels I get this bad grinding sound and a lot of vibration... the whole master cylinder...
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