Within the anti-lock braking system, there are ABS pumps. Anti-lock brakes prevent your wheels from locking up during breaking. ABS pumps play an important role in the system. Here’s what you should know about what ABS pumps are, how they work, and what happens if they go bad.

What is an ABS pump?

An anti-lock braking system is made up of a few components: a controller, speed sensor, valve, and pump. The ABS pump is considered to be the heart of the anti-lock braking system. The ABS pump helps to boost braking performance and is what will help you to avoid losing control of your vehicle on slippery roads, such as when you’re driving on icy, snowy, or rainy roads.

What is the role of the ABS pump?

The ABS pump is used to restore pressure to the hydraulic brakes after the valves have released them. Signals from the wheel speed sensors are processed by the ABS module. If a wheel slip is detected, a valve will be released to avoid this. When the valve is released and pressure is lost, the ABS pump will restore the lost pressure. In vehicles that are not equipped with an anti-lock braking system, the driver has to manually pump the breaks in order to prevent wheel lockup. With an ABS system, there is a four-chambered pump that feeds each brake individually and as needed.

Signs of ABS Pumps Going Bad

There are a few ways an ABS pump may go bad. If the pump leaks brake fluid, it means it’s not able to do its job effectively. Brake fluid plays a crucial role in the braking system as it transfers the force created directly onto the wheel hub when the brake is pressed. Another symptom of an ABS pump going bad is that the brake pads will require more force to push. The brakes may also lock up or be completely unresponsive if the ABS pump is going bad or already in need of repair or replacement. Of course, if your ABS light is on, you’ll want to check to see which part might be malfunctioning.

How to Deal with Bad ABS Pumps

If the ABS pump is leaking, you will likely need to replace the seals and/or o-rings. You can get these replacement parts at a local parts shop. If you have to replace the entire pump, that’s an option as well and can be found new or used at a parts shop. If you purchase used parts, make sure to inspect them carefully and buy from a trusted seller. Buying used parts that are in good condition will save you money. If you’re handy with car repairs, an ABS pump is something you can do yourself to save more money.

The pump plays an important role in the anti-lock braking system and overall performance and safety of your car. If you notice any of the warning signs that your ABS pump is going bad, it’s a good idea to have it checked and repaired as soon as possible.