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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 480 (Brake System - General Information) >> Diagnosis And Testing >> Brake System >> Component Tests >> Brake Master Cylinder Tests >> Brake Master Cylinder - Bypass Condition Test

Brake Master Cylinder - Bypass Condition Test

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check the brake hydraulic system for leaks or insufficient brake fluid. Repair as necessary.
  2. Observe the brake fluid level in the brake master cylinder reservoir while the brake pedal is slowly applied and released. If the brake fluid level rises when the brake pedal is applied and drops when the brake pedal is released, but the net brake fluid level remains unchanged, the brake master cylinder is bypassing. Repair or install a new brake master cylinder. For additional information, refer to HYDRAULIC BRAKE ACTUATION .
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