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Inspection Procedure 17: The initial check sound of hydraulic unit is loud.
 
 
caution
  • When installing brake tube, match the axial center of flare 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 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 vehicle speed reaches 6 mph (10 km/h), 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 with that of the same model.
Is the check result normal?
This diagnosis is complete.
Carry out adjustment for hydraulic unit installation. (Refer to ).