Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Anti-Lock Brake System (ABS)
The anti-lock brake system consists of the following components:
- hydraulic control unit (HCU)
- ABS module
- rear wheel speed sensor
- rear wheel speed sensor ring (integral to the ring gear)
- front wheel speed sensors
- front wheel speed sensor ring (integral to the hub and bearing assembly)
- yellow ABS warning indicator
- brake pressure switch
The front wheel speed sensor rings are integral to the front hub and bearing assemblies. For additional information, refer to FRONT SUSPENSION - 4X2 or FRONT SUSPENSION - 4X4 .
The rear wheel speed sensor ring is integral to the ring gear. For additional information, refer to REAR DRIVE AXLE/DIFFERENTIAL - FORD 8.8-INCH RING GEAR .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.