Q: Brake piston seized after brake pad change

asked by on

I recently attempted to change my brake pads. After i removed the caliper, I forgot that i needed a clamp to compress the piston, so i put the car back the way it was with the old pads and tried to drive off to get a clamp. The brake has a horrible grind now and the brake seems semi-engaged. I could not leave my driveway. I took it apart again, bled the brake a pit, it became slightly looser, but still too engaged to drive anywhere. How can i at least return it to the way it was?
My car has an automatic transmission.

Was this the rear brakes? Many times the rear calipers have to be turned in with a special press that turns the piston and presses the piston in at the same time. This is because the parking brake is built into the rear caliper. Often times the parking brake in the caliper gets seized up and causes the brakes to get stuck on. Unfortunately, the only way to fix this problem is to replace the caliper.

Now, if it’s the front brakes, it is possible that the sliders on the brake caliper bracket may be stuck. If they get stuck, this will cause the brakes to be stuck on. It is possible for the sliders to be taken apart and lubricated to avoid replacing the caliper.

I would recommend asking for help from one of the mechanics at YourMechanic to come to your location, run a diagnostic inspection on your brake system, and get your brakes working properly again.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Brake piston seized after brake pad change

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: While I'm driving, my vehicle makes a hissing noise when it shifts, it will go away sometimes.

Hello. If the noise occurs right before the transmission shifts, then it can be caused by a few things. Depending on how it sounds, it can be a loose belt that is slipping when the vehicle is getting ready to...

Q: Brake keep locking up while driving and coming to a stop and while in park.

The calipers could have a piston that is sticking or the combination valve on the brake system is sticking causing the brakes to be locking up after touching the brake pedal. I recommend seeking out a professional, such as one...

Q: Rattling sound in 2004 F-150 Lariat when starting the engine on cold weather

Unfortunately for you, that is almost always a testing slap. It means that the bearings are worn and that the pistons around are slapping back and forth. If it makes that much noise, have a mechanic listen to and diagnose...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...