Brake Master Cylinder - Compensator Port
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
- 1.
Inspect the master cylinder. Refer to Brake System Inspection .
- 2.
With the vehicle in NEUTRAL, position it on a hoist. Refer to Jacking and Lifting .
- 4.
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 5.
- 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.
- 5.
Check the brake stoplamp switch and the brake pedal free play to verify that the brake pedal is not partially applied.
- 6.
Loosen the brake master cylinder nuts and position the brake master cylinder away from the brake booster.
- 7.
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 .
- If the brake drag is still present, install a new master cylinder. Refer to Hydraulic Brake Actuation .