How To Bleed Brakes On A 2003 Chevy Silverado. A bleed valve is a hollow bolt. Start with the one toward the engine.
There are two screws, open the one at the front. You also want to suck out all the old fluid from the master cylinder. Have some apply pressure to the brake pedal.
Do not let the master cylinder run out of brake fluid or else air will enter the brake system, and you will have to start the brake bleeding process over again. I am working on 2003 gmc sierra truck (4×4, 5.3l v8 lm7 motor). In this video i show you how to bleed the brake system on a gmc sierra 2500hd.
You also want to suck out all the old fluid from the master cylinder. Follow these steps to attach your pressure bleeder to your braking system and purge the worn and contaminated brake fluid from your brake lines: Place the proper size hex end of the wrench over the caliper bleeder valve.
Attach a hose to the valve, then run the valve into a jar filled with brake fluid. Fill your sprayer with two to three quarts of clean brake fluid. Open the valve insuring the hose is in the brake fluid.
Slowly apply the brake pedal one time and hold. Close the screw and do the same at the second bleeder screw. Open the bleeder screw and allow the fluid to flow until clear.
99 % of these kind of issues is air trapped inside the abs module and can usually be removed by using a scan tool when bleeding the brakes air is trapped inside the abs module and the only way to purge the air out of the abs module into the brake lines to then manually bleed the air out of the wheel bleeders is with a scan tool and either with the scan tool putting the abs. I was going to bleed the system the old fashion way (2. How to bleed brakes on 1500 1999 silverado.