Brake Master Cylinder - Compensator Port
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- With the vehicle in NEUTRAL, position it on a hoist. Refer to JACKING & LIFTING article.
- Apply and release the brakes.
- With the brakes released, attempt to rotate each wheel and check for any brake drag.
- If an excessive amount of brake drag exists at multiple wheels, continue to Step 4.
- If an excessive amount of brake drag exists at only one wheel, it indicates a possible seized brake caliper, brake wheel cylinder or parking brake component. Repair or install new components as necessary.
- Check the brake stoplamp switch and the brake pedal free play to verify that the brake pedal is not partially applied.
- Loosen the brake master cylinder nuts and position the brake master cylinder away from the brake booster.
- With the brakes released, attempt to rotate each wheel and check for any brake drag.
- If the brake drag is no longer present, install a new brake booster. Refer to POWER BRAKE ACTUATION -- BRAKE BOOSTER article.
- If the brake drag is still present, install a new master cylinder. Refer to HYDRAULIC BRAKE SYSTEM ACTUATION article.