|Fluid boiling due to wet fluid or foot drag.
|Flush out entire system with fresh brake fluid. Install heat shields where necessary.
|Incorrect or faulty master cylinder.
|Repair or replace master cylinder.
|Leak in caliper or hydraulic lines.
|Check for leaks in caliper and lines.
|Pedal linkage failure.
|Check pedal assembly.
|Excessive spindle deflection in corners.
|Check spindles for warping.
|Bad master cylinder.
|Switch or replace master cylinder.
|Calipers not square to rotor.
|Re-align brackets or shim calipers.
|Tapered brake pads.
|Replace pads, check caliper alignment to rotor.
|M/C has internal residual pressure.
|Remove residual pressure valve.
|Glazed pads and/or rotors.
|Grind and/or sand glaze from rotors.
|Not enough pedal ratio.
|Increase pedal ratio
|Pedal mounted at bad angle.
|Master cylinder push rod should not be off more than 5° in any angle
|Wrong pad material for your applications.
|Pads must match rotor operating temperature range.
|Frozen pistons in calipers.
|Caliper seal old or dried out.
|Replace with new seals.
|Nick or ding on piston or cut seal.
|Replace pistons and/or seals as necessary.
|Air in brake system.
|Re-bleed the system.
|Calipers not bled with bleed screws straight up.
|Unbolt calipers and hold with bleed screws in the vertical position.
|Faulty master cylinder.
|Replace master cylinder.
|Calipers not mounted square to the rotor.
|Re-align brackets parallel to rotor, or shim caliper.
|Calipers flex excessively.
|Check caliper bolts and brackets.
|Excessive spindle deflection in corners causing piston knock-back.
|Check spindles for warping or cracks.
|Excessive rotor run out.
|Shim between rotor and hub/hat.
|Pad material buildup on rotors.
|Change pads, clean rotor face.
|Tighten caliper mounting bolts.
|Rotor faces not parallel.
|Re-grind rotor faces, or replace rotors.
|Excessive front bearing clearance.
|Check for proper bearing size, or tighten the spindle nut.
|Possibly the wrong brake linings fitted at the rear of the vehicle, a wrongly adjusted or faulty brake proportioning valve, oily or worn-out rear brake linings, worn-out or damaged rear brake discs or drums, a defective rear wheel brake circuit.
LOCK TOO SOON
|Possibly the wrong brake pads or shoes fitted to the front or rear of the vehicle, a wrongly-adjusted or faulty brake proportioning valve, oily or worn-out front brake pads, worn-out or damaged front brake discs, defective front brake calipers.
OUT OF LANE
|Due to problems on one side of the vehicle, e.g. the wrong brake pads, worn, oily or glazed brake pads, worn or damaged brake discs or drums, pistons that are rusty and can't move or that are difficult to move in the wheel cylinder or disc brakes. The issue is normally on the side opposite to where the vehicle swerves.