Contour V6-153 2.5L DOHC VIN L SFI (1997)
Brake Rotor/Disc: Flow of Diagnosis
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Brake pulsation (brake roughness) that is present during brake application is caused by;
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foreign material build-up
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contamination on the rotor surface
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uneven lateral runout.
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For diagnostic procedures, refer to Brakes - System Diagnosis. See: Testing and Inspection
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Each time the brakes are serviced, the front and rear disc brake rotors should be checked for scoring, runout, parallelism and thickness.
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Front and rear disc brake rotor scoring and runout may be checked with the front and rear disc brake rotors either on or off the vehicle.
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To check parallelism and thickness, the front or rear disc brake caliper must be removed.
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Disc brake rotor specifications are listed in Specifications.
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If there is foreign material build-up found on disc brake rotor or brake shoe and lining surfaces, hand sand front disc brake rotor and brake shoe
and lining.
PROCEDURES
Refer to Brakes - System Diagnosis. See: Testing and Inspection
Refer to Testing and Inspection - Procedures for rotor runout/parallelism/thickness tests.