why does my car shake when i brake going downhill

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. There is no vibration at level road up to 70-80mph and very little afterward.

Why Does My Car Shake When Braking I Sterling Acura Of Austin

A not-uncommon question that mechanics are asked concerns why does my front end shake while braking.

. The whole shaking can be felt through your brakes. Damaged Tires or Rims. Along with brake pad caliper and rotor issues your car Harlem Shaking down the block may also be caused by suspension and tire issues that affect your cars safety.

This heat can cause the metal to expand resulting in the warpage shaking through the car as your speed reduces. The car feels fine while driving at normal speeds but when the brakes are applied the steering wheel will vibrate. If your steering wheel shakes as you brake this indicates your rotor is either warped or more likely has worn unevenly over time.

The harder you brake the more fluid pressure builds in the calipers and the more pressure is applied to the brake pads and rotors. It also jerks when I brake which it did before I got my breaks fixed. If the caliper or caliper pistons become stuck it is unable to properly squeeze the brake pads against the rotors which may cause you to feel some vibrations when you hit the brakes.

When you press on the brakes your brake pads clamp down on your brake discs also known as rotors. Another common cause of shaking can be due to sticking of the brake caliper. Naturally you ask yourself Why does my car shake when it brakes There are several explanations for car shaking when braking.

Lots of really good info there including some from one of the best car engineers of all time Carroll Smith. Driving in a hilly area where you have to press the brake throughout the entire time causes overheating resulting in the warping of the rotors ultimately leading to the shaking of your car. If your car shakes when accelerating your best bet at having some of the repairs covered is to have comprehensive and collision coverage.

In an ideal world the rotors are perfectly smooth. If your steering wheel is shaking the problem is your front rotors. Tires need to get replaced once in a while because they are made of rubber which will get old with age and start to crack.

If you live in the UK then that would fail an MOT test. It can be easy to get steering wheel shakes when braking downhill since there are so many moving parts. The air in the brake lines produces irregular pressure across the brake pads and calipers.

Due to the unusual pressure the car will start shaking whenever you will apply the brakes. When you hit the brakes when traveling downhill the brake rotors heat up as normal. However if it only does to going downhill it could be suspension or steering joints are worn and need replacing.

If Your Car Shakes When Idle. Spend some time absorbing this. Once the rotors cool down the warpage is less noticeable.

If air somehow gets into the brake lines then it can also cause the car to shake when you apply brakes. It can be felt as a general loss of braking grip soft pedal or shaking if the the padsrotors are only partially gripping. The most common reason why your car is shaking.

I dont have to press it hard to have this happen. To answer your question I do not see the abs light on when this occurs FWIW. The frequency is about 2-3 times a second maybe when I am going at around 40 mph.

If you feel a shuddering in the brake pedal but the steering wheel isnt shaking its the back. Up to 8 cash back My car shakes severely when breaking going downhill and shakes a bit when stopping on flat road. When doing work yourself be extra diligent.

If the rotors are out of balance you might feel tremors as. One suggested a warpped disc so I replaced them with EBC slotted disc which has. Up to 8 cash back Applying the brakes going down hill makes the rotors get warmer than they usually do.

There are a couple of things. My 2004 RX330 front wheel driver side I feel shakes vigorously when slight braking during down hill 60 mph at 10-20 degree grade. Perhaps your vehicle shakes when its idle.

Otherwise what would be a sign that abs might be an issue. When worn out the metal stops protecting the firm belt and the rubber does not absorb vibrations causing the car to shake when the brakes are applied. Sometimes brake rotors can be the issue of shaking.

Your cars steering might suffer from a loose control arm or damaged. If your vehicle is constantly in a vibrating and shaking motion it can be because of out of balanceround brake rotors. These issues could occur either from just the age of the tire or from a smaller accident.

Your cars front-end alignment could be way out of whack. I discussed and took the car to 2 different shops. The latter is something that happens over the lifespan of a car.

It could be warped brake discs. Usually rotors can be machined so the rotors are flat. Air Trapped In The Brake Lines.

Is damaged tires or rims. Comprehensive will protect you against things like vandalism theft and acts of God natural disasters while collision will keep you covered against damages resulting from a collision with another car or stationary object. One of your tires could be badly out of round A wheel could be unbalanced having lost its counterweight.

The vibration is generally caused by the brake rotors being warped. StopTech Technical White Papers. Another thing is that when I go under 20mph and have been driving for a while at the speed the my car makes a knocking sound I took my foot off the breaks and the gas and it still.

The shudder happens most of the time when I go downhill and apply the brakes. Warped front disc brake rotors can cause shaking when youre braking. Unless you have a friendly expert then you really need to see a car repair shop.

Bell Performances master mechanic James Dunst weighs in on the explanation for the problem and the solution.

13 Main Reasons Why Your Car Shakes When Braking