Skip the auto shop - Our mechanics make house calls

Q: Car vibrates when braking on a hill.

asked by on

When I apply my brakes while driving down a hill, the car starts to vibrate. It only occurs when I'm driving down a hill on the freeway. Is it time to get my brakes replaced, or is this pretty normal for steep highway hills?

A: The front brake rotors on this car is commo...

The front brake rotors on this car is common to get warped causing the vibration you feel. When you are going down the hill it is putting more stress on the brakes and will tend to heat the rotors more. The warped rotors are felt more on a downhill grade and will only get warped worse till you will start to feel it all the time. If you feel it in the steering wheel then it is in the front brake rotors. If you feel it more in the seat of your pants then it is in the rear brakes. It could be felt in both and would be in both the front and rear brakes. I recommend you have a mechanic like one from YourMechanic to inspect your brakes for you.

Was this answer helpful?

A: The vibration that you are feeling is comin...

The vibration that you are feeling is coming from the brake rotors being warped. This can happen over time with the rotors due to normal wear and tear. Applying the brakes going down hill makes the rotors get warmer than they usually do. Heat causes metal to expand and when this happens it makes the warpage bad enough that you can feel the shaking through the car when braking. Once the rotors cool down the warpage is less noticeable. Usually rotors can be machined so the rotors are flat again. It is possible that the rotors may be too worn, or too thin, to machine. I would ask for help from one of the mechanics at YourMechanic so they can come to you and check your rotors. Once they do that they will know whether or not your brakes need to be replaced or machined.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Sounds like a small fan on engine when car off, not radiator fans.

Hi, thanks for writing in. The noise you are hearing is the emission control system performing a system test of the fuel tank vapor system. The system should run the test in less than ten minutes. If the battery cannot...

Q: How do I change the auto door lock settings?

Your vehicle can automatically lock the doors when you are driving, for added safety. You can use the multi-information display to customize if you would like the doors to automatically lock when the vehicle is moving at a significant speed,...

Q: Would the crankshaft be the issue for the car losing power or misfiring gears?

Hi! It sounds like there are a number of things that could be going on with your Mountaineer. If you feel like it's in neutral when you're in drive, that is a transmission issue. You can start by checking the...

Related articles

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.