Inspection

1. Fluid level when system is "depressurized", refer to "Depressurizing the Powermaster III Unit" in Service and Repair.
2. Brake lines, brake hoses, Powermaster III Unit and brake calipers for leakage.
3. Brake lines and brake hoses for excessive wear, heat damage, punctures, tears, interference with other parts, missing clips or holders, poor connections or blockage.
4. Calipers and caliper pins for rust or corrosion.
5. Calipers for proper sliding action.
6. Caliper pistons for movement during brake apply and sufficient retraction upon brake release.
7. Front speed sensors for proper mounting and connections.
8. Front speed sensor rings for broken teeth or poor mounting.
9. Front speed sensor to ring air gap. Air gap is not adjustable but should be between 0.48 mm (0.019 in.) and 1.73 mm (0.068 in.).
10. Rear speed sensor connections.
11. Rear speed sensors for proper installation or damage.
12. Brake pedal travel after system is depressurized. Pedal should NOT bottom near the floor, refer to "Excessive Pedal Travel".
13. Worn or missing isolator bushings on Powermaster III which may cause objectionable pump motor noise.
14. High pressure line on Powermaster III which may be rubbing against other engine compartment components.