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BigBob, Shop manager/technician
Category: Chevy
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Experience:  Shop Manager with 25 years experience
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Chevrolet Silverado 1500: how to bleed brakes

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how to bleed brakes
Greetings and welcome to just answer!!!!!!!!!!!!!!

What year is it? What repairs did you do?

Customer: replied 5 years ago.
a 2000 replaced calipers roters and brake shoes on front
You are doing it correctly. You will need to keep doing it until you get fluid. Are you getting air?


  • Use the two-person bleed procedure under the following conditions:
  • Installing a new Electro-Hydraulic Control Unit (EHCU) or new Brake Pressure Modulator Valve (BPMV) .
  • Air is trapped in the valve body
  • Do not drive the vehicle until the brake pedal feels firm.
  • Do not reuse brake fluid that is used during bleeding.
  • Use the vacuum, the pressure and the gravity bleeding procedures only for base brake bleeding.

Two Person Procedure

  1. Raise the vehicle in order to access the system bleed screws.
  2. Bleed the system at the right rear wheel first.
  3. Install a clear hose on the bleed screw.
  4. Immerse the opposite end of the hose into a container partially filled with clean DOT 3 brake fluid.
  5. Open the bleed screw 1/2 to one full turn.
  6. Slowly depress the brake pedal. While the pedal is depressed to its full extent, tighten the bleed screw.
  7. Release the brake pedal and wait 10 - 15 seconds for the master cylinder pistons to return to the home position.
  8. Repeat the previous steps for the remaining wheels. The brake fluid which is present at each bleed screw, should be clean and free of air.
  9. This procedure may use more than a pint of fluid per wheel. Check the master cylinder fluid level every four to six strokes of the brake pedal in order to avoid running the system dry.
  10. Press the brake pedal firmly and run the Scan Tool Automated Bleed procedure (all except diesels above 15,000 GVW) once, or run the Function Test (diesels above 15,000 GVW) four times. Release the brake pedal between each test.
  11. Bleed all four wheels again using Steps 3 - 9. This will remove the remaining air from the brake system.
  12. Evaluate the feel of the brake pedal before attempting to drive the vehicle.
  13. Bleed the system as many times as necessary in order to obtain the appropriate feel of the pedal



Please let me know if I can help further,


BigBob and other Chevy Specialists are ready to help you
Customer: replied 5 years ago.
where is the ehcu valve or the bpmv
That is under the driver seat where all the brake lines come in on the frame.

Customer: replied 5 years ago.
could this be part of my problem
Not likely, but always a possibility, Is the ABS light on?

Customer: replied 5 years ago.
yes the light is on
Customer: replied 5 years ago.
Tried to keep bleeding lines,just didn't work. Have now bought a master cylinder and going to put in.
No further questions thank you . Please stop all emails , thank you very much