1998 Chevy S-10 Abs Bleeding Procedures

by Richard Rowe

    The Wright brothers might get all the press in the United States, but Europe's Gabriel Voisin is the one who took aircraft from novelty experiment to functional tools of transport. Voisin produced the first heavier-than-air, manned aircraft capable of sustaining a 1-kilometer circle of flight without luck or divine intervention. A couple of decades later, airplanes had gone from little putt-putters to multi-ton bombers; the antilock braking system he conceptualized for those bombers later saw use on the automobile, and proved especially handy on lock-up-prone pickups like the Chevy S-10.

    Items you will need

    • Wheel chocks
    • Floor jack
    • Jack stands
    • Line wrench
    • Clear hose
    • Catch jar
    • DOT 3 brake fluid
    • Assistant
    • Tech 2 scan tool
    Step 1

    Chock the truck's front tires, raise the rear of the truck with a floor jack and set it on jack stands. Find the brake bleeder valve on the back of the brake cylinder on the right-rear wheel. Plug a length of clear, plastic hose onto the bleeder valve, drop the other end into the bottom of a catch jar and fill the jar with enough DOT 3 brake fluid to immerse the end of the tube.

    Step 2

    Use a line wrench to open the bleeder screw by 1/2 to a full turn counterclockwise. Have your assistant push the brake pedal down all the way to the floor. Close the bleeder screw, and then tell your assistant to release the pedal. Wait 10 to 15 seconds. Repeat three more times, then top the brake master cylinder up with brake fluid.

    Step 3

    Repeat Step 2 on the right-rear wheel until the tube runs solid with clean and bubble-free fluid. Close the bleeder screw, then repeat the bleeding procedure in this order: left-rear, right-front and then left-front. Keep topping off the master cylinder -- if you let it run dry you'll have to start all over again. Tighten all bleeder screws.

    Step 4

    Use the Tech 2 scanner tool to access the "Function Test" menu; run the function test four times consecutively while holding the brake pedal to the floor. Repeat Steps 1 through 3 to re-bleed all four wheels. After re-bleeding, press the brake pedal down to ensure a firm brake pedal. Re-bleed the brakes as many times as necessary to obtain a firm brake pedal.

    References

    • ProDemand; 1998 Chevrolet S10; Service Manual; Anti-Lock Brake System; ABS Bleeding Procedure