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Why does my brake line drag after I release the pedal?

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.

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.

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.

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.

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.

Why do I have so much brake drag?

We see a lot of brake drag problems caused by a master cylinder that is too full of fluid. If the system is overfull, there may not be enough room in the reservoirs for the fluid to return. In most master cylinders, it is necessary to have the fluid level approximately ½” from the top.

What causes brake drag when replacing master cylinder?

This situation is usually remedied by replacing the master cylinder. We see a lot of brake drag problems caused by a master cylinder that is too full of fluid. If the system is overfull, there may not be enough room in the reservoirs for the fluid to return.

When is the best time to fix brake drag?

It is highly recommended to fix the dragging brakes as soon as possible because it can lead to overheated parts and potential damage to the braking system, or worse yet, an accident. Got Questions? Speak With A Specialist Now!

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Ruth Doyle