Repacking brakes (specifically referring to wheel cylinder repacking) is usually only necessary if:
* Wheel cylinders are leaking: This is the primary reason for repacking. Leaking wheel cylinders indicate a worn seal and require attention to prevent brake failure.
* Wheel cylinders are being rebuilt or replaced: New wheel cylinders usually come with new seals, but sometimes repacking is still done as part of the rebuild process.
* Extensive brake system work: During major brake overhauls, repacking might be done as a preventative measure.
Signs you might need wheel cylinder repacking (or other brake work):
* Spongy brake pedal: This indicates a loss of brake pressure, potentially due to air in the lines or a leak.
* Low brake fluid level: This consistently happening suggests a leak somewhere in the system.
* Brake fluid discoloration: Dark or contaminated brake fluid is a sign of a problem needing investigation.
* Pulling to one side when braking: This can indicate uneven brake wear or a problem with one of the wheel cylinders.
* Grinding or squealing noises: While not directly indicating a need for repacking, these are signs of general brake issues that should be addressed.
In short: You should have your brakes inspected by a qualified mechanic. They can assess the condition of your wheel cylinders and determine if repacking or other repairs are necessary. Don't attempt this repair yourself unless you have significant automotive experience; brake systems are crucial for safety.
