Skip the auto shop - Our mechanics make house calls

Q: Brake pedal is hard to push

asked by on

A week or so after having a mechanic change my oil and brake fluids, I noticed that my brake pedal was very tight. The pedal was actually hard to push with one foot. I was also scared that I would not be able to stop rapidly if it was necessary. Lately I have been driving the 4 runner with extreme caution. The brakes work they are just a bit like an old car.

My car has 187500 miles.
My car has an automatic transmission.

Hi there, thanks for writing in. I’d be happy to provide my insight.

There is a possibility that they may have overfilled the brake reservoir with brake fluid. Start by checking that it has the proper amount. Secondly, it is possible that your brake booster is not working properly. When the brake pedal is depressed, a vacuum builds up in the booster which amplifies the pedal force, pressing on the piston in the master cylinder. The piston movement raises the hydraulic pressure in the cylinder. This hydraulic pressure is then applied to each respective brake cylinder and wheel cylinder, and acts to press the brake pads and shoes against the rotating discs and drums. The resulting friction converts the rotational energy to thermal energy, stopping the vehicle. With that said, when the brake booster fails, it will require much more energy to press the pedal and get the car to stop.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make any repairs as needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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: ticking / clicking noise coming from the front end while driving a low speeds.

Hi there. The ticking noise could be the universal joints on the driveshafts or axle shafts on the front axle. The ticking noise could be the universal joints having the bearings burned up causing the caps to move around on...

Q: Fuel issues - 1999 Chevrolet Venture

Hi there. You may have a misfiring plug or plug wire that has not caused the Check Engine Light to come on yet, but may have stored a code. Have the computer scanned first. You may just have a carbon...

Q: Wheel is hard to turn

The power steering pump may not be working properly and not producing any pressure. The pump would need to be checked for proper pressures using a tester gauge set. If the pump is producing enough pressure then the steering gear...

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...
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...