A Brake Booster Pressure Sensor Replacement cost in Chino Hills in 2023

The average cost for a brake booster vacuum sensor with CarAdvise is $163 and the range is generally between $103 and $225.

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A Brake Booster Pressure Sensor Replacement costs by shop in Chino Hills.

CarAdvise Customers save an average of $33 on A Brake Booster Pressure Sensor Replacement.


Average cost of A Brake Booster Pressure Sensor Replacement for popular vehicle models in Chino Hills:

Car Model

Avg. cost


THE IMPORTANCE OF A Brake Booster Pressure Sensor Replacement

What is a brake booster pressure sensor and how does it work?

As the name implies, a brake booster pressure sensor is a component of the brake system in a vehicle.

Automotive brakes rely on hydraulic pressure to work. When you press on the brake pedal, force is exerted by a pump (the brake master cylinder) through the fluid in a series of tubes to the brake calipers (clamps) at each wheel. The net effect is that, when you step on the brake pedal, the hydraulic force slows and stops your wheels. To help you press the pedal easily, modern vehicles incorporate a power booster attached to the master cylinder.

Brake boosters need vacuum to function. Vehicles with gasoline internal combustion engines provide vacuum to the brake booster continuously. Hybrid, electric, and diesel vehicles, on the other hand, must rely on a special vacuum pump to run the booster.

Whether vacuum is provided by the engine or by the vacuum pump, the brake booster pressure sensor measures the level of negative pressure (vacuum) available to the brake booster at any given time when your vehicle is running.


How do I know if my vehicle needs a new brake booster pressure sensor?

Without a brake power booster, it would be extremely difficult to press the brake pedal hard enough to stop your vehicle. If the brake booster pressure sensor fails, your brake pedal might become stiff or difficult to push. Stopping times and distances might increase, while braking power is reduced. Each of these can lead to a dangerous driving condition. The check engine light or brake warning light might come on, and a diagnostic scan might reveal a trouble code related to the brake booster pressure or vacuum pump.

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How does a technician perform A Brake Booster Pressure Sensor Replacement ?

To replace a brake booster pressure sensor, a technician will likely take the following general steps:

  • Disconnect the negative battery terminal to cut power to the vehicle
  • Remove any heat shields, guards, or other components blocking access to the sensor
  • Loosen and remove any hose connections and wiring associated with the sensor
  • Remove and replace the sensor
  • Attach the hoses and wires
  • Reinstall any components removed to access the sensor
  • Reconnect the battery
  • Verify the repair by test driving the vehicle or using a diagnostic tool to view the feedback from the sensor


Where is the brake booster pressure sensor located?
The brake booster pressure sensor is typically mounted directly on the brake power booster itself. The brake booster is attached to the master cylinder inside the engine compartment, directly in front of the driver. The pressure sensor might instead be located in the vacuum line leading from the brake booster to the vacuum pump on some vehicles that are so equipped.
What happens if the brake booster loses vacuum?
If the brake booster loses vacuum, the brake pedal will become very hard to push. The result can be a loss of braking power, longer stopping distances, and delayed stopping distances. Your brakes simply will not work as well. If there is a vacuum leak, the engine will also not run as well. A brake malfunction light or check engine light may also show on the dash.
What code refers to the brake booster vacuum sensor?
One of the tools a technician uses to diagnose a vehicle problem is a scan tool. When connected to your vehicle’s data port, the scan tool will read trouble codes stored in the vehicle’s computer, and the technician will have data to determine where to look for the problem. Diagnostic trouble codes related to the brake booster pressure sensor include P0555, P0556, and P0557.

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