Symptom Test B: Wheel Lock-Up

1996 Ford Bronco 5.0 N, Automatic, E4ODSECTION Symptom Test B: Wheel Lock-Up
  1. ABS valve failure may be caused by defective hydraulic outlet (dump) valve. To correct condition, refer to TEST P: LEFT FRONT OUTLET VALVE (HYDRAULIC) OR SENSORΒ  , TEST Q: RIGHT FRONT OUTLET VALVE (HYDRAULIC) OR SENSOR and TEST R: REAR AXLE OUTLET VALVE (HYDRAULIC) (steps 2 and 3 only) under DTC TESTSΒ  .
  2. A rear brake mechanical failure may be caused by damp or contaminated rear brake linings, stuck or leaking wheel cylinders, rear brakes adjusted to tight, parking brake not releasing or leaking rear axle seal. To correct this condition, inspect rear brakes and repair or replace components as necessary.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.