Ranger 2WD V6-245 4.0L VIN X SFI (1997)
Brake Master Cylinder: Component Tests and General Diagnostics
Bypass Conditions Test
For the bypass condition test, refer to Pinpoint Test R. See: Testing and Inspection/Component Tests and General Diagnostics
Non-Pressure Leaks
FLUID LOSS
The only part of the brake system that could have a brake fluid loss that did not appear when the system is under pressure is the brake master
cylinder reservoir area. Brake fluid loss could be caused by a missing or poorly fitted brake master cylinder filler cap, from a punctured or
otherwise damaged brake master cylinder reservoir, by a missing or damaged brake master cylinder filler cap gasket, or at the sealing grommets
between the brake master cylinder and the brake master cylinder reservoir.
NOTE:
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The brake master cylinder reservoir grommets are not separately serviceable and must be replaced with a new brake master cylinder reservoir.
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The wet appearance of the outer cover of rubber brake hoses is called "sweating." This is a normal condition for neoprene rayon braid hose.
The "sweating" condition is not evidence of a brake fluid leak and will not result in a loss of pressure in the system.
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Replace a flexible brake hose if it shows signs of softening, cracking or other damage.
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When installing a new brake hose, position the hose to avoid contact with other vehicle parts.
