With the engine running at idle and the shift lever in NEUTRAL
(N), depress the brake pedal and hold a constant foot pressure on the pedal.
If the pedal gradually falls away with the constant pressure, the hydraulic
system may be leaking. Visually check the following to confirm a suspected
leak.
| • | Master Cylinder Fluid Levels. While a slight drop in the levels
occurs with normal lining wear, an abnormally low level resulting in the illumination
of the BRAKE warning lamp may indicate a leak in the system. The system
may be leaking internally or externally. (The system may appear to pass
this test, but still have a slight leakage.) |
| • | Brake Hose and Pipe Connections. If leakage is found, verify the
torque of the fasteners and/or replace the hose or the pipe. |
| • | Connecting Brake Components. Inspect fro damage, rebuild or replace
as needed. |
| • | Caliper. If leakage is found, rebuild or replace the assembly. |
| • | Also, check the service brake pedal travel, brake adjustment and
the parking brake adjustment. |
