How To Bleed ABS Module Without Scan Tool Silverado?

You are on the right page if you have a Silverado and its brakes become slow. As you know, the Silverado comes with an Anti-lock Braking System (ABS) that functions with the help of braking fluid and a pressurizer.

There are multiple reasons why the brake module turns faulty. It mostly happens when air gets into the brake circuit. Failure of the braking system increases the risk of skidding, spinning, or power sliding under heavy braking. So, in that case, you have to bleed your Silverado ABS module.

There are two methods to complete the whole bleeding.

  • With a diagnostic tool
  • Without that tool

To bleed the ABS module manually, without a scan tool, you’ll need some standard auto mechanical tools. The two most important steps are to release the trapped air from the circuit and to replace the old brake fluid with a new refill.

Silverado ABS Module Bleeding Procedure Without Scan Tool

Everyone riding in the Silverado must thoroughly understand the anti-lock braking system (ABS) and the ABS module. Bleeding this module of Silverado without any scan tool is not so difficult. Not everyone will fully grasp it. Some rider go for installing additional factory trailer brake controller Silverado. But, after reading this portion, you can do bleeding by following my methods.

1. Gather Necessary Mechanical Tools

Before you start the mechanical tasks, you should have a toolbox to adjust your car and its body parts. What are they?

  • Brake Fluid
  • Car Jack (Pro-LifT G-737 is one of the best car jacks for Silverado)
  • Car Stands
  • Drip Pan
  • Eye Glasses
  • Gloves
  • Jack Baster
  • Hammer
  • Wrench (OEM Two-Headed 8mm and 10mm Bleeder Wrench is a good option for Silverado.)

2. Park Your Car

After accumulating all the tools, now it’s time to find a flat, well-lit, and well-ventilated spot to park the car. Put on the emergency brakes by engaging the parking gear.

3. Remove The Wheels

Now, you have to adjust the car. With the help of the car jack, raise the vehicle to an appropriate height so that it is possible to remove all four wheels without difficulty and access bleeders.

4. Remove The Brake Fluid

The brake fluid for your vehicle is located in a reservoir hidden away under the hood. Every wheel has a metal tube attached to it that leads to a little clear container. Such lines are known as braking lines.

Once you’ve located the holding tank, you can replace the old brake fluid with fresh fluid. Consult a trusted mechanic to determine which fluid is best for your car before making a purchase.

5. Unscrew The Brake Bleeder Screw & Remove The Old Fluid

The next step in the ABS module bleeding is to use the bleeder port on the brake caliper. Using the proper bleeder wrench, you can unscrew the bleeder screw and release the pressure. With the high-pressure hose and tubing in hand, place one end in the empty plastic container and the remaining end onto the bleeder screw.

To help yourself, you should continuously press the brake until all of the liquid has been drained into the bottle. After you’ve finished all the wheels, ensure the fluid cylinder is completely dry.

6. Add Fuel And Lock The Bleeder Screw

If you want to ensure the bleeder screw goes back properly, let your companion push down on the brake pedal and hold it while you do it. Tell him to keep his foot on the pedal while you loosen the bleeder screw to release any pressure.

This process must be repeated multiple times to ensure the brake lines are completely devoid of air bubbles. Remember that this must be done for each wheel. First, the right back wheel, then the left back wheel. Then the right front wheel and, at last, the left front wheel.

The next step is to replace the master cylinder’s braking fluid until it is completely full, which requires opening the cylinder. Keep a close eye on the brake fluid levels of the master cylinder as you drain it to ensure that air is not absorbed into the system.

7. Check For Leakage

Once you’ve finished bleeding the brake lines, have a friend pump the brakes while you check for leaks around the vehicle. Now is the moment for your pal to ensure the pedal is set up correctly. ​

8. Reassemble All The Body Parts

Last but not least, put your wheels back on and check your brakes. Drive it around to check if the brakes are working. Don’t forget to mop up any stray liquid, either. Safety must always come first.

Now, if all of this is being too complicated for you, go to our article on how to bleed ABS module with scan tool. Before that, you might want to check these scan tools for your Silverado.

  1. Foxwell NT630 Plus
  2. Autel MaxiCheck Pro


Apart from the above discussions, there are some other queries that people have about the ABS module of Silverado. Let’s know about them.

1. Can you drive with a faulty ABS module?

You can still drive if the ABS module is broken. However, you won’t be able to take advantage of ABS’s vital features under extreme braking conditions. With the help of the bleeding the module, you can avoid potentially catastrophic mishaps.

2. How to reset the ABS system?

Simply depressing the brake pedal while disconnecting the positive battery cable can drain the car’s electrical system completely. This will cause the car’s main computer to reboot. The ABS sensor should be changed if the warning light reappears.

3. How much does it cost to fix the ABS module?

The pricing for fixing the ABS module might be anything from $340 to $1100, based on the nature of the required repairs and the cost of labor.

4. What are the symptoms of a faulty ABS module?

Multiple issues can arise from a broken ABS module. That would be:
A. The glow of the ABS warning light.
B. The brakes fail to work.
C. The brake pedal doesn’t work.
D. Requires more pedal effort.
E. Broken Speedometer.


Hopefully, now you understand how to bleed Silverado’s ABS module without a scan tool. So, if your car’s brakes become slow or unresponsive, go for a check and bleed the ABS module. After bleeding the module as well as the entire brake circuit, double-check that everything is in its proper place and that no fluid is leaking.

Have your assistant repeatedly push on the pedal to check if the brakes are functioning properly. Remember one thing if the process of bleeding the module seems tough for you, contact a professional car mechanic. 

Hi, this is Johnny Norris grew up in a car-oriented family. I love helping people by solving different problems they face in their Chevy car. Following my suggestions, how-to guides, you can save up on a lot of money that would have been spent on paying a professional.