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What causes no brake pressure after bleeding your brakes?
I tried bleeding my brakes because they felt spongy, but when I pushed my brake pedal, it went straight to the floor with no braking power. What causes no brake pressure after bleeding your brakes?
Melanie Mergen · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Air or moisture trapped inside your brake fluid can soften your brakes and make them ineffective for braking. When you bleed your brakes, you open the small valve of the caliper or the wheel cylinder and allow the brake fluid to exit the system, thereby removing air and moisture from the brake fluid and allowing them to work optimally.
A lack of brake pressure after bleeding your brakes can be caused by several things, including:
- Damaged brake lines
- Faulty bleeding screw
- Faultybrake caliper
- Fitting incorrect brake caliper
- Brake fluid leak somewhere in the system (check your fluid level to make sure it’s remained at the right amount)
- Faulty seal in thebrake master cylinder
- Piston stuck in the master cylinder bore
Depending on the problem, the fix can be quick. But if you’re still having trouble regaining brake pressure after bleeding your brakes, book an appointment with your local mechanic or autobody shop to discuss the problem.
MORE: How to bleed brakes by yourself
View full answer
- Gregory R.
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