Winner Chevrolet of Wilmington

How to Bleed Brakes

Brakes feeling spongy? Finding yourself pushing the brake pedal harder to come to a stop? There might be air in your brake system

Usually, you can fix this yourself by bleeding the brakes. This process is a little more involved than changing your oil, but still something most DIY enthusiasts can do at home with a few simple tools.

This guide from Diver Chevrolet will teach you how to bleed brakes in most vehicles, regardless of whether you have disc or drum brakes. If you have any questions, contact our service center. We’re here to help drivers in WILMINGTON, Newark, and New Castle with any brake-related needs.

Contact us today regarding your brake needs.

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WHEN DO I NEED TO BLEED MY BRAKES?

You should bleed your brakes any time air is introduced into the hydraulic system. This usually happens if you open the sealed system to replace things like the calipers, brake lines, or the master cylinder.

Replacing brake pads, on the other hand, generally doesn’t affect the hydraulic system. This means you shouldn’t need to bleed your brakes every time you replace the brake pads.

Air can also make its way into the system over time, resulting in squishy or spongy brakes. Even if you haven’t replaced one of the above components, it’s a good idea to bleed your brakes every two years or so—especially if you’re finding it harder to come to a stop.

Schedule a service appointment with us today.

ABS Break Systems

A NOTE ABOUT ABS SYSTEMS

There’s a lot of conflicting information online about whether you can bleed your own brakes in vehicles that have an ABS system. Generally, you’re fine to bleed your brakes if air has been introduced between the ABS system and the brakes. The air bubbles will flow through the lines as expected.

However, if there’s air above the ABS system—like at the master cylinder—you may need to take your vehicle to a qualified service center. This is because it’s hard to get air out of the complicated ABS system using traditional bleeding methods. Your local dealership has the tools to do this correctly.

Make sure to check your owner’s manual before you start to see if there are special instructions for bleeding brakes with your ABS system.

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WHAT YOU’LL NEED

Make sure to gather all the required materials before you start, so you don’t have to find a way to get to the auto parts store halfway through. To bleed brakes, you’ll need:

  • Jack stands to lift your car off the ground
  • Two unopened canisters of brake fluid that match recommendations in your owner’s manual
  • Nitrile gloves and safety glasses to protect you from toxic brake fluid
  • Cloth rag to clean up any spills
  • Bleeder wrench that matches the size of your bleeder bolts
  • Bleeder hose or quarter-inch plastic tubing
  • An empty jar to drain brake fluid into
  • A friend to pump the brakes for you

HOW TO BLEED BRAKES

  1. Raise your car on jack stands. Make sure it’s parked on a level surface first. Then, raise it on jack stands or cinder blocks to make it easier to get under the vehicle.
  2. Check the fluid level in the master cylinder. You want to make sure it’s full before you start, because the process of bleeding your brakes will remove some brake fluid from the system. If it’s too low, you’ll end up introducing more air into the brake lines.
  3. Check the bleeder valves. Use your bleeder or box wrench to make sure you can easily loosen each bleeder valve bolt, so you don’t run into any issues after you start. If you’re having issues, add some penetrating oil and try again in a few minutes. Re-tighten each bolt before moving on.
  4. Bleed the brakes. Usually, you want to bleed your brakes in the following order: passenger-side rear, driver-side rear, passenger-side front, driver-side front. In other words, you’re starting farthest from the master cylinder and working your way closer. Some vehicles require a different order, so check your owner’s manual first.

    When you’re ready to start, add an inch or so of brake fluid into your empty jar. Attach one end of your bleeder hose to the bleeder valve and place the other end into the brake fluid in your jar.

    Ask your friend to pump the brake pedal three times and then hold it down. While pressure is maintained on the pedal, you should open the brake bleeder valve. Brake fluid will flow through the hose and into your jar.

    As this happens, your friend will notice the brake pedal continue to move toward the floor. Ask them to let you know when it stops moving. At this point, close the bleeder valve. After it’s closed, your friend can remove their foot from the brake pedal.

    Repeat this step until no more air comes out of the line. Then, check the fluid level in the master cylinder before moving on to the next brake, topping it off as necessary.
  5. Finish up and take a test drive. Once you’ve bled all four brakes, top off the fluid in the master cylinder one last time. Then, make sure everything’s tight and get your car back on the ground.

    Finally, take it for a careful test drive. Start slow to make sure the brakes work as expected.

NEED BRAKE HELP?

Congratulations—you now know how to bleed brakes! Hopefully, following these steps will result in a more responsive brake pedal.

Need parts to help with brake repair in WILMINGTON, Newark, or New Castle? Head to Diver Chevrolet to get what you need. Our qualified technicians are also available to help you solve any brake problems. Contact us today to get your questions answered or schedule a service appointment!

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AUTOMOTIVE SERVICE YOU CAN COUNT ON IN WILMINGTON

The expert team at Winner Chevrolet of Wilmington is committed to caring for your vehicle for as long as you own it. We have state-of-the-art service facilities and use the latest diagnostics to maintain and repair your vehicle at a competitive price. Winner Chevrolet of Wilmington offers expert repairs, maintenance, parts installation and more at our WILMINGTON auto repair center. Explore our service incentives, then schedule your appointment online. We look forward to helping you keep your car in peak condition.

Winner Chevrolet of Wilmington

2101 PENNSYLVANIA AVE, WILMINGTON, DE 19806

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