Brake Hydraulic System Diagnosis and Repair

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Master Cylinder[edit]

(3 Questions)

  • Diagnose Problems with Master Cylinder
    • Poor Stopping
    • Dragging
    • High or Low Pedal
    • Hard Pedal
    • Spongy Pedal
    • Leakage
  • Determine proper response of master cylinder


  • Remove, Repair, Replace
    • Bench bleed a Master Cylinder
    • Measure and adjust Master Cylinder push-rod length

Lines and Hoses[edit]

(3 Questions)

  • Diagnose
    • Poor stopping
    • Pulling
    • Leaks and Clogs
  • Remove and Replace

Valves and Switches[edit]

(3 Questions)

  • Diagnose
  • Remove and Replace

Bleeding, Flushing, and Leak Testing[edit]

(3 Questions)

  • Diagnose problems in the Brake fluid
    • Sponginess
    • Dragging
    • Poor stopping
    • Incorrect Pedal travel
  • Select, handle store and install proper brake fluids
  • Bleed and/or flush hydraulic system
    • Manual
    • Pressure
    • Vacuum
    • surge gravity