What is the problem when the rear car cannot stop?
2 Answers
The reason why the rear car cannot stop may be due to a lack of necessary maintenance of the braking system, or mechanical failure caused by improper operation. Brief introduction to the causes of brake failure: There are many reasons for brake failure. First, it could be due to a lack of necessary maintenance of the braking system, such as excessive impurities in the brake master cylinder, poor sealing, failure of the vacuum booster, dirty brake fluid or the formation of vapor locks when different types of brake fluid are mixed and heated, leakage in the brake master cylinder or wheel cylinders, or air leaks in the air reservoir or pipeline connections. Second, improper operation may lead to mechanical failure, such as prolonged downhill driving causing the brake pads to overheat, carbonization of the brake drums, and complete loss of braking function. Third, severe overloading increases the vehicle's inertia due to gravitational acceleration, directly resulting in brake failure. How to handle brake failure while driving: Control the direction according to the road conditions and speed, disengage the high gear, and quickly rev the engine once to shift from high gear to low gear. This will create significant engine braking resistance, rapidly reducing the vehicle's speed. Additionally, while shifting to low gear, use the handbrake in combination, but be careful not to pull it too tightly or too slowly. Pulling it too tightly may cause the brake disc to "lock up," potentially damaging the transmission components and losing braking ability. Pulling it too slowly may cause excessive wear and overheating of the brake disc, rendering it ineffective. Use the vehicle's rigid parts, such as the bumper or body, to rub or collide with natural obstacles on the roadside (rocks, large trees, or slopes) to force a stop and minimize accident losses.
I've experienced a situation where the rear brakes failed to stop the car, which happened on a long downhill slope with weak rear wheel braking force. The cause was insufficient brake fluid and excessively worn pads. After topping up the fluid, it improved, and then I replaced the pads. Reminder: regularly check the maintenance manual, change brake fluid every year; maintain a steady speed while driving to reduce frequent braking. Safety measures include pulling the handbrake for emergency stops. Regular maintenance saves big trouble with small costs.
