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msharp63
Active Member

USA
17 Posts

Posted - 09/05/2018 :  08:29:42 AM  Show Profile  Visit msharp63's Homepage  Reply with Quote
I have a 2006 Thomas bus with hydraulic brakes, I had to replace the brake booster, I have bleed all the lines, however there is no power to the brakes, when we press them they are hard and have no power behind them, the backup pump comes on as it should. With the motor running I crack the pressure line from the power steering pump and get fluid, but not at alot of pressure, it just runs out with no pressure. The power steering works fine.

Any ideas
Thanks
Mike

Bus Tech1
Senior Member

76 Posts

Posted - 09/10/2018 :  10:30:31 AM  Show Profile  Reply with Quote
Does this bus have ABS? Not sure if it is similar to some that you have to cycle the valves to remove air.
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