Ads
related to: diagnosing a bad brake booster 4runner
Search results
Results From The WOW.Com Content Network
The fault could be lack of hydraulic fluid, low brake fluid in the reservoir, a broken hydraulic line or a bad master brake cylinder. The sensor is used to detect pressure differentials in the hydraulic system. If the car alerts a fault in the hydraulic system and the system checks out, the sensor itself may have failed. [2]
In the US it is commonly called a brake booster. A vacuum servo, also known as a power booster or power brake unit, uses a vacuum, usually supplied by the engine, to multiply the driver's pedal effort and apply that effort to the master cylinder .
Vacuum boosters provide brake assist for the driver by multiplying the force out of the booster creating more than the force that was used to push on the brake pedal. The booster works by pulling the air out of the booster chamber with a pump or other vacuum source (typically the engine's intake manifold [1]), creating a low-pressure system ...
When ESC detects loss of steering control, it automatically applies the brakes to help steer the vehicle where the driver intends to go. Braking is automatically applied to wheels individually, such as the outer front wheel to counter oversteer, or the inner rear wheel to counter understeer. Some ESC systems also reduce engine power until ...
Brake lines were upgraded for improved pedal feel, and electronic Trailer Sway Control programming included. No driveline changes were made. All 2014 model year 4Runner models are powered by a 4.0-liter V-6 engine with intelligent Variable Valve Timing (VVT-i) that can develop 201 kW (270 bhp) and 377 N⋅m (278 ft⋅lb) of torque.
The brake override system, also called "brake to idle" and already a common design in German cars, allows the driver to override the accelerator by hitting the brakes. In a follow-up statement, the NHTSA announced the November 25, 2009 recall details as a "vehicle-based remedy" to address the floor mat pedal issue. [ 64 ]