How to Replace a Brake Booster Vacuum Sensor

Schedule Brake Pad Replacement
Service Area

$124.62 - $450.29

Price range for all vehicles
Average rating from 10,732 customers who received a Brake Pads Replacement.

The brake booster vacuum pressure sensor is found in most vehicles equipped with an electric or engine-driven vacuum pump. This sensor monitors vacuum levels to the brake booster to ensure proper power brake operation. The sensor is typically located in the vacuum line from the vacuum pump to the brake booster.

If vacuum levels fall or if the vacuum pressure sensor fails, your car can have an illuminated Check Engine Light and/or a hard brake pedal. Since the brake system on your car is vital for your safety, ensure that you get this issue fixed as soon as possible.

Part 1 of 2: Locate the vacuum pressure sensor

Materials Needed

typical brake booster vacuum hose

Step 1: Determine the location of the vacuum brake pressure sensor. Usually, the vacuum pressure sensor is located in the vacuum line to the brake booster. However, the vacuum line may not be directly visible in front of the brake booster as it may run behind and/or under the windshield cowl.

Verify the sensor location for your specific vehicle before you begin or attempt the replacement.

typical vacuum sensor location

Step 2: Remove the pressure sensor. Once you locate the sensor, remove any trim pieces and brackets that may be present so that you can access the pressure sensor. After you gain access, use the appropriate pliers to remove the hose clamps and then pry the vacuum sensor from the vacuum hose.

Step 2: Install the new sensor. Once the old sensor is removed, you can install the new one.

Ensure that you replace and tighten the clamps that were removed earlier. Also, put back any other components and trim panels that may have been removed to access the vacuum sensor.

Part 2 of 2: Check the brakes

Step 1: Turn on your vehicle. Start the vehicle and allow the vacuum pressure to build back up in the brake booster.

Step 2: Check the vacuum. Depress the brake pedal a few times to verify whether you have vacuum assist.

Sometimes, simply replacing a faulty component may not automatically reset any warning lights that are present. If any warning lights remain illuminated, you may need to visit a local repair facility or auto part store to clear and reset the system.

If you are unsure about performing this process on your own, get one of the mobile technicians from YourMechanic to come to your home or office and replace your vehicle’s vacuum booster sensor.


Next Step

Schedule Brake Pad Replacement

The most popular service booked by readers of this article is Brake Pad Replacement. Yourmechanic’s technicians bring the dealership to you by performing this job at your home or office 7 days a week between 7AM-9PM. We currently cover over 10k cities and have 100k+ 5-star reviews... LEARN MORE

SEE PRICING & SCHEDULING

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Recent Brake Pad Replacement reviews

Excellent Rating


YourMechanic Brake Pad Replacement Service

Average Rating

4.9/5

Number of Reviews

10,732

Rating Summary
10,227
323
67
33
82
10,227
323
67
33
82

Rigoberto

9 years of experience
706 reviews
Rigoberto
9 years of experience
Chevrolet Equinox - Brake Pads Replacement (Rear) - Niles, Illinois
Rigo was great! He got there early, finished the job early, left everything clean. He changed my rear pads and rotors. The original quoted time was 90 minutes, he was done in about 60. He knows what he is doing and I am recommending him to all my friends and coworkers.
Mercedes-Benz C250 - Brake Pads Replacement (Front, Rear) - Chicago, Illinois
Rigo is a maverick hands down. Don’t take your car for work elsewhere. Especially great at Mercedes—this guy knows his profession! I will be using him for everything related to my car going forward.

Arturo

25 years of experience
35 reviews
Arturo
25 years of experience
Kia Forte - Brake Pads Replacement (Front) - San Diego, California
ARTURO is great! very professional , fast, replaced my front brake pads and oil an filter change. everything now works and works well. Brakes have much improved stopping power and engine is smooth and quiet.Arturo is also kind and thoughtful. "Your mechanic" is very fortunate to have Arturo Lopez represent your company. I enthusiastically recommend him and "Your mechanic> as a fine operation Best regards to the Team Peter Marto
Nissan Maxima - Brake Pads Replacement (Front, Rear) - San Diego, California
Arturo was prompt and completed my brake repair, including new rotors in a very efficient manner. I am very pleased with the quality of the work and the parts and will definitely look to have him service our other car in the near future.

Scott

32 years of experience
345 reviews
Scott
32 years of experience
Lexus IS250 - Brake Pads Replacement (Rear) - Denver, Colorado
Always on time, speedy, professional, and pleasant to interact with. The work is always consistent and we'll done. I can't reccomend Scott highly enough!

Michael

10 years of experience
15 reviews
Michael
10 years of experience
Nissan Sentra - Brake Pads Replacement (Front) - Conyers, Georgia
He was promptly on time and got the job done efficiently in a timely manner. I really appreciate the rapid respone on getting the job done! I would most definitely use this service again.

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE