Expedition 2WD V8-5.4L SOHC VIN L (1997)
Brake Master Cylinder: Initial Inspection and Diagnostic Overview
NORMAL CONDITIONS
The following conditions are considered normal and are not indications that the brake master cylinder is in need of service.
Condition 1:
During normal operation of the master cylinder, the fluid level in the brake master cylinder reservoir will rise during brake application and fall
during release. The net fluid level (i.e., after brake application and release) will remain unchanged.
Condition 2:
A trace of brake fluid will exist on the booster shell below the master cylinder mounting flange. This results from the normal lubricating action of
the master cylinder bore and seal.
Condition 3:
Fluid level will decrease with pad wear.
ABNORMAL CONDITIONS
Changes in brake pedal feel or travel are indicators that something could be wrong in the brake system. Refer to the Symptom Chart for abnormal
condition diagnosis.
