If you understand your truck"s brake liquid needs to be replaced, continue reading because that this comprehensive guide for you to do the task yourself.


This article applies to the Chevrolet Silverado GMT800 (1999-2006).

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As with various other cars and trucks, her Silverado demands hydraulic brake liquid to slow-moving down. As soon as you depress the brake pedal, the brake fluid flows to and also applies push to the caliper piston, which climate pushes the brake pad ~ above the rotors. Because every one of this occurs in a vacuum, any type of air introduced into the braking device can cause improper brake usability or even a finish brake system failure. Therefore if the ABS irradiate on your dash come on, you feel too much vibrations once coming come a stop, or the brake pedal feel spongy, air pockets might have gotten in the brake system and also the brakes fluid needs to it is in replaced. If you"ve simply replaced the brake lines, calipers, understand cylinder, ABS module, or brake booster, then flushing and also replacing the brake fluid is additionally necessary. Check out the steps below for a complete DIY overview on exactly how to replace your Silverado"s brake fluid.

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Figure 1. Brake liquid reservoir in Chevy Silverado.

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Materials NeededPressure bleederBrake liquid syringeBrake fluid bleed hose10mm wrenchDrain bottleDOT 3 brake fluidTire ironHydraulic jack and also jack stand

You should bleed the brakes because that each wheel separately. Repeat the bleeding procedure (Steps 2 through 4) in the following order:

Right behind wheelLeft behind wheelRight front wheelLeft former wheel

Step 1 – prep the bleeding process

Park your truck on level ground.Remove the brake liquid reservoir cap.Using a brake fluid syringe, eliminate as much old liquid from the reservoir together you can.Refill the reservoir with brand-new brake fluid.Fill the pressure bleeder with 3 to four quarts of brand-new brake fluid.Attach the pressure bleeder hose lid to the brake liquid reservoir.
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Figure 2. Press bleeder attached come brake fluid reservoir.

Step 2 – remove the wheel

Place a floor jack underneath the jacking point closest to the wheel you are about to remove.Loosen the lug nuts ~ above the wheel v a tire iron.Jack up the truck until the wheel is turn off the ground.Position the jack was standing underneath the correct jacking allude (lower manage arms for the front; axle tubes for the rear).Lower the van onto the jack stand.Remove the lug nuts and the wheel.

(Related Article: how to Jack Up her Truck - ptcouncil.net)

Step 3 – Pressurize the brake system

Check the quantity of liquid in the push bleeder and also top turn off if necessary.Pump the take care of on the press bleeder till fluid begins to flow through the line and also into the reservoir.Continue pumping slowly until the push gauge on the bleeder reads approximately 15 to 20 psi.
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Figure 3. Press bleeder bleeding the brake fluid.

Step 4 – Bleed the brakes

Remove the dust cap from the bleed valve.
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Figure 4. Bleed valve circled in red. Connect the bleed hose onto the bleed valve.Route the other end of the bleed hose right into the drainpipe bottle. Make sure the finish of the hose is submerged in brake fluid (use brand-new brake fluid if you have actually to).
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Figure 5. Bleed water tap attached.
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Figure 6. Bleed hose routed to the drainpipe bottle.Using a 10mm wrench, revolve the bleed valve about a half-turn counterclockwise until brake liquid starts to circulation out.Allow the fluid to drainpipe until you view only new fluid flowing out with no waiting bubbles. Make sure to store an eye ~ above the amount of fluid left in the pressure bleeder, and also make certain it continues to be pressurized. If the brake liquid runs dry, friend will must repeat the process.Once you watch that there are no wait bubbles, tighten the bleed valve to avoid the liquid flow.Re-install the dust cap on the bleed valve, and then re-install the wheel.

Step 5 – finish the bleeding process

After you"ve bled all the brakes, start the truck and also depress the brake pedal. If the pedal tho feels spongy, there"s most most likely air left in the brake lines.

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Pro Tip

If bleeding the brakes walk not deal with your problem and there is no waiting in the brake lines, other reasons of brake failure might be internal damage to the understand cylinder or booster, or there"s a worn rubber brake line that is bulging.