What Causes Steering Wheel Shaking When Braking Above 80?
1 Answers
Steering wheel shaking when braking above 80 is caused by uneven surfaces on the brake discs, and simply replacing the brake discs will resolve the issue. A car's braking system consists of a vacuum booster pump, master brake cylinder, wheel brake cylinder, brake pads, and brake discs. The wheel brake cylinder is commonly referred to as the brake caliper. Upon opening the engine hood, you can see a large black disc located below the windshield on the driver's side—this is the vacuum booster pump. When the brake pedal is pressed, the vacuum booster pump provides assistance, making it easier for the driver to depress the pedal. In front of the vacuum booster pump is the master brake cylinder, and above it is a small oil reservoir used to hold brake fluid.