Q: My brake pedal is rock hard and extremely hard to press to get the car to stop...what might be wrong with it?

asked by on

I drove my car to the airport Friday and when I got back on Monday I found out that my brakes had suddenly become extremely hard to depress almost to the point that it's hard to come to a complete stop...they were completely fine on Friday. What could be causing this? Is it the brake booster or possibly the booster vacuum pump? Or even maybe a vacuum line to the pump itself

My car has 157000 miles.
My car has a manual transmission.

Your supposition is a reasonable one. That is, if there is no mechanical or hydraulic fault with the brake components, then the power assist is probably not working. The booster could be leaking, the internal valving defective, a bad check valve and/or something as simple as a disconnected vacuum line could be causing the problem. If you like, please request a brake assist diagnostic and repair and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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. My brake pedal is rock hard and extremely hard to press to get the car to stop...what might be wrong with it?

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: Loss torque on accelration

It sounds like you are experiencing a lean condition and engine pinging. The most common fault I have seen for this is when the mass air sensor causes the engine to go too lean. When you look at the scanner...

Q: What type of rotors

Hello! They added metallic brakes on the front to give the front more stopping power than the rear, which is great for stopping during sudden braking. It will be beneficial to put slotted rotors and performance pads on the van,...

Q: Audi A4 makes noise In Sport Mode

Switching to sport mode only changes the transmission software. So I don't think you are actually experiencing a transmission problem. But the "sport mode" program enables the engine to reach higher speeds before shifting gears, so it could be that...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...