How do you bleed the brakes on a 2002 Chevy Blazer?

Bleeding the Brakes on a 2002 Chevy Blazer
To bleed the brakes on a 2002 Chevy Blazer, you will need to follow a specific process to ensure the removal of any air from the brake lines. Here’s a step-by-step guide based on the information from the search results:
1. Prepare the Materials:
– You will need fresh brake fluid, a box-end wrench, and a length of 1/4-inch I.D. clear tubing.
2. Start with the Rear Passenger-Side Brake:
– Pour a small amount of fresh brake fluid in a small, clean container.
– Install a box-end wrench and a length of clear tubing on the rear passenger-side brake bleeder nipple.
– Submerge the loose end of the hose in the container of fresh brake fluid.
– Instruct your helper to apply and hold steady pressure on the brake pedal.
– Open the caliper bleeder valve until the brake pedal bottoms out, then close the bleeder valve and release the brake pedal.
3. Continue with the Other Wheels:
– Repeat the bleeding process for the other wheels, starting with the rear passenger-side, then moving to the rear driver-side, front passenger-side, and finally the front driver-side.
4. Additional Tips:
– Some sources suggest that bleeding the master cylinder and then reconnecting the lines, followed by a gravity bleed and a pressure bleed, can help ensure the removal of air from the brake system.
– It’s important to keep the brake master cylinder full at all times during the bleeding process.
5. Consider ABS Module Bleeding:
– If you suspect issues with the ABS module, it may also need to be bled. Some sources recommend using a professional scan tool for bleeding the ABS module.
Remember to always follow the specific instructions for your vehicle and consult a professional if you encounter difficulties or are unsure about the process.

How do you bleed an ABS module on a Chevy?

But if air has entered the modulator, the system will have to be bled using a pressure bleeder and scan tool:

1. Connect the pressure bleeder to the master cylinder reservoir.
2. Turn the ignition on.
3. With bleeder screws closed, pressurize the system to 35 psi.
4. Select the “Automatic Bleed Procedure” on the scan tool.

Will air work itself out of brake lines?

The only way to regain proper compression and pressure is to bleed the air out of the system through purging or flushing. Clean brake fluid is forced into the system, pushing the air bubbles out.

Why are my brakes still spongy after bleeding?

It could be anything. It could be that there’s still air in the lines, or one of the bleeder screws isn’t tight, a loose fitting, a damaged line, a failing brake master cylinder. or portioning valve. Mechanic may need to replace master cylinder and replace break fluid. You may also have air in the lines.

Do you bleed brakes with reservoir cap on or off?

Locate your brake master cylinder reservoir’s brake fluid level, usually located under-the-hood. Ensure that your car has the appropriate amount of fluid. While you’re bleeding the brakes, you’ll want to be sure that you leave the master cylinder cap unscrewed but rest it on top of the reservoir.

How do you get air out of brake lines without bleeding them?

To get air out of your brakes, you have to bleed them. There’s no two ways around it—to remove the air it has to be replaced with new fluid. That may seem easy enough (and it is, for an experienced mechanic) but doing any DIY on your brakes is dangerous.

How do you get air out of brake lines?

Brake bleeding is the conventional method used to rid brake lines of any trapped air. This process involves loosening the bleeder screws at each wheel cylinder or brake caliper to release brake fluid and air into a catch container.

Will brakes work with air in the lines?

Over time it will likely compromise your brakes. Another possibility for air in the lines is if you tried to bleed your brake fluid improperly and it introduced air into the master cylinder.

Do you bleed ABS brakes with engine running?

Brakes are bled with the engine off. A running engine supplies a vacuum boost to the brake system. To properly bleed all the air from the system, there needs to be NO boost. Just pump the brake pedal until a solid pedal is felt, then bleed each caliper (if equipped) until the air is evacuated.

Does car need to be running to bleed brakes?

The vehicle should not be running at any time during the bleeding process. If you are using a DIY system, these steps require a partner: With your partner in the driver’s seat, have them slowly pump the brake pedal two times and then hold the brake pedal to the floor. Have them yell out pressure when the pedal is down.

How many times do you pump brakes when bleeding?

Instruct the assistant to “apply.” The assistant should pump the brake pedal three times, hold the pedal down firmly, and respond with “applied.” Instruct the assistant not to release the brakes until told to do so. Loosen the bleeder screw with a brief ¼ turn to release fluid into the waste line.