Inspection Procedure 6: The Initial Check Sound of the Hydraulic Unit Is Loud

The contents of this article and images reflect the changes identified in TSB-11-35-001.

INSPECTION PROCEDURE 6: The Initial Check Sound of the Hydraulic Unit Is Loud

CAUTION: When installing brake tube, match the axial center of flair nut and brake tube with the center of hole at the hydraulic unit side, and check that the fluid does not leak.

COMMENT ON TROUBLE SYMPTOM
The operation sound may be decreased by reducing the load at the rubber mount portion of the brake tube and hydraulic unit.

PROBABLE CAUSES
^ Improper installation of the the hydraulic unit.
^ Improper installation of the brake tube.

DIAGNOSIS

DRIVING CHECK
1) Turn the ignition switch from the "LOCK" (OFF) position to the 'ON' position.
2) When the vehicle speed reaches 6 MPH (10km/hr), check the operating sound volume and compare it with that of the same model.
OK: The operating sound is the same volume or less by comparing it with that of the same model.
Q: Is the check result normal?
YES: This diagnosis is complete.
NO: Carry out adjustment for the hydraulic unit installation.