Q: Driver has to pump brake pedal multiple times to brake

asked by on

When I first started my car, the brakes would not operate. While I backed out of my driveway, I tried pressing on the brake pedal several times by pumping the brake pedal more than eight times to get the brake system to engage. There was another instance where I was driving about 5 mph and the brakes stopped functioning and my car rolled until it independently stopped. I went to the dealer and was told that my car needed a new pump that will assist the braking system to build up pressure so that the brakes will engage. Before I agree to this, would you please give me your diagnosis of this problem?

I’m not familiar with a pump assisting the system, but the master cylinder creates the hydraulic pressure needed to transfer power from your floor to the brake assemblies. A failing master cylinder can feel like a leak in the hydraulic system as it cannot create the proper pressure. Have a certified technician, like one from YourMechanic, physically inspect the brake system for any actual leaks as well.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Driver has to pump brake pedal multiple times to brake

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: After braking hard, the car shuts off

Hello. It is very hard to diagnose and issue like this without knowing a large variety of other factors. If nothing is wrong with the vehicle at this point, I would not worry about taking in your car. If you...

Q: Q: Car Window will not roll up

It sounds like your window switch may be faulty. If you hear the motor try to move the window when pressing down but no noise is heard when pressing up, its most likely the window switch. If you hear the...

Q: Q: Engine knocking

Knocking in your engine, also described as pinging, can mean one of several problems. Some may be easily fixed while others may indicate major damage. The knocking sound often occurs when the fuel and air mixture is incorrect, which causes...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.