Why does my brake line drag after I release the pedal?
Brake Lines and Hoses: There may be pressure trapped in the brake line or hose after the pedal has been released. During brake application pressure is high enough to bypass the kink, but when the brake pedal is released, the spring pressure of the master cylinder is not sufficient for the pressure to bypass the kink.
What causes brake drag on the master cylinder?
Master Cylinder: Brake drag can be caused by an incorrect brake pedal adjustment. This pedal adjustment is crucial and if adjusted too tightly the vent port of the master cylinder can become blocked. The building pressure in the system results in brake drag and possible brake lockup.
What can I do to stop brake drag?
Lubricate slide pins on disc brakes to prevent brake drag and binding. Lubricate the pads where the brake shoes ride on the backing plate of drum brakes. This will help prevent a possible squeaky noise as the shoes move across the plate.
What causes the brake to drag after replacing the caliper?
Brake hoses twist while replacing the caliper after a brake job resulting in brake drag at that unit. Fluid pressure can bypass the twist during the application, but not return to the master cylinder after release. Return Springs: Weak or broken return springs will result in brake drag.
Can a caliper not release cause brake drag?
Just like with the master cylinder not releasing causing the brake drag, a caliper not releasing and staying applied can do the same thing. If only one position is dragging, this could be the case.
How to diagnose and fix brake drag?
The easiest way to diagnose this is to remove the caliper from the rotor and turn the rotor. If the drag still is present, then the problem is internal with the bearings. At this point, replace as necessary and reinstall to the proper torque value and pre-load.
Can a brake rotor be a brake drag?
To correct this, replacement of the rotors and pads will be necessary. This situation could come across as a brake drag but is a drag due to wheel bearings being seized due to a lack of grease or over tightening during installation. The easiest way to diagnose this is to remove the caliper from the rotor and turn the rotor.
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