Inspection Procedure 14

Inspection procedure 14: The initial check sound of hydraulic unit is loud.

CAUTION:

When installing brake tube, match the axial centre of flare nut and brake tube with the centre 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.


Q. Is the check result normal?

YES This diagnosis is complete.
NO Carry out adjustment for hydraulic unit installation. (Refer to Testing and Inspection).