OEM Brake Assist Vacuum Pump for 2017-2024 Buick, Cadillac, Chevrolet, & GMC

Buying the right brake vacuum pump is important for safety and performance. Here's what to look for:

What to look for when buying this part:

• Check the part's compatibility with your vehicle's year, make, and model.
• Inspect the part for any visible damage or defects.
• Ensure the part comes with any necessary gaskets or seals.

Quality indicators for the available options:

• Look for parts that have been tested and inspected to meet quality standards.
• Check for warranties or guarantees.
• Read reviews from other customers.

What's typically included with the part:

• The brake vacuum pump itself
• Sometimes a new gasket or seal
• Installation instructions (sometimes)

Replacing a brake vacuum pump can range from a simple task to a more involved project, depending on your experience.

Difficulty level and estimated time:

• Difficulty: Moderate
• Estimated time: 1-3 hours

Special tools needed (if any):

• Socket set
• Wrench set
• Vacuum gauge (optional, but helpful for diagnosis)
• Torque wrench

Critical steps and tips:

1. Disconnect the negative battery cable.
2. Locate the brake vacuum pump.
3. Disconnect the vacuum lines and electrical connector.
4. Remove the old pump.
5. Install the new pump, making sure to properly connect the vacuum lines and electrical connector.
6. Torque the mounting bolts to the manufacturer's specifications.
7. Reconnect the negative battery cable.

Whether DIY is recommended or professional installation is better:

• DIY is possible for experienced mechanics. If you are not comfortable working on your car's brakes, professional installation is recommended. Brakes are critical for safety.

You have several choices when buying a replacement brake vacuum pump. Each option has its own advantages.

Used OEM: Best value - genuine factory parts, tested and inspected, at significantly lower prices. These parts are original equipment from the manufacturer, offering a reliable and cost-effective solution.

Refurbished OEM: Factory parts professionally restored with new components. These parts have been inspected, cleaned, and repaired to meet original performance standards.

New Aftermarket: Brand new third-party parts built to OE specs. These parts are manufactured by companies other than the original manufacturer, but are designed to meet or exceed the original specifications.

Replacing certain parts along with the brake vacuum pump can prevent future problems.

Parts commonly replaced or checked at the same time:

• Vacuum lines
• Brake booster
• Check valve

Why replacing related parts prevents repeat failures:

• Replacing worn or damaged vacuum lines can prevent leaks that can damage the new pump.
• A faulty brake booster can put extra strain on the pump, causing it to fail prematurely.
• A bad check valve can cause vacuum loss.

The lifespan of a brake vacuum pump can vary depending on several factors.

How long this part normally lasts:

• Typically 50,000 - 100,000 miles

Factors that affect longevity:

• Driving habits
• Maintenance schedule
• Environmental conditions
• Quality of the replacement part

The cost of a brake vacuum pump can vary depending on the type and brand.

Budget vs mid-range vs premium options:

• Used OEM: $50 - $150
• Refurbished OEM: $100 - $250
• New Aftermarket: $150 - $350

Labor cost considerations if applicable:

• Labor costs can range from $100 to $300, depending on the shop and the complexity of the job.

Total job cost estimates:

• Total cost (including parts and labor) can range from $150 to $650.

Some vehicles have known issues related to the brake vacuum pump system.

Known issues for this vehicle's system related to this part:

• Some models have reported issues with oil leaks affecting the pump's performance.
• Check for any service bulletins related to the brake vacuum pump system on your specific vehicle.

Any TSBs or common complaints:

• Consult your vehicle's service manual or online resources for any Technical Service Bulletins (TSBs) related to the brake vacuum pump.

After installing the new brake vacuum pump, it's important to verify that it's working correctly.

How to confirm proper operation:

• Start the engine and let it idle for a few minutes.
• Check the brake pedal feel. It should be firm and responsive.
• Use a vacuum gauge to verify that the pump is producing the correct amount of vacuum.

What to look/listen for to verify it's working correctly:

• The brake pedal should feel normal.
• The engine should idle smoothly.
• There should be no unusual noises coming from the pump.
• The brake warning light should be off.

Q: How do I know if my brake vacuum pump is bad?
A: Common signs include a stiff brake pedal, increased effort to stop, a loud whining noise from the engine, and the brake warning light coming on.

Q: Can I drive with a bad brake vacuum pump?
A: It's not recommended. A failing brake vacuum pump can reduce braking performance and make it harder to stop, which is dangerous.

Q: Is it hard to replace a brake vacuum pump myself?
A: It depends on your mechanical skills. If you're comfortable working on cars and have the right tools, you can likely do it yourself. Otherwise, professional installation is recommended.

Q: What happens if I don't replace a bad brake vacuum pump?
A: Your braking performance will continue to worsen, making it harder to stop and increasing the risk of an accident.

OEM Part Numbers:

• GM: 23489832, 84313396, 84491774

Fits Years: 2017 2018 2019 2020 2021 2022 2023 2024