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What to Do When Brakes Smoke During Long Downhill Descents?

1 Answers
DiMiranda
09/06/25 3:08am

Long downhill descents causing brake smoke require cooling by splashing water. Using manual mode and engine braking during descents can effectively prevent this situation. The function of brakes is to reduce speed or bring the vehicle to a stop. Their working principle involves converting the kinetic energy of the moving vehicle into heat energy through friction between the brake pads and brake drums, as well as between the tires and the ground, thereby slowing or stopping the vehicle. Causes of brake failure include: 1. Impurities or poor sealing in the brake master cylinder; 2. Failure of the vacuum booster; 3. Contaminated brake fluid; 4. Leakage in the brake master or wheel cylinders; 5. Air leaks in the air reservoir or pipe connections; 6. Severe overloading; 7. Carbonization of the brake drum; 8. Insufficient brake fluid in the master cylinder; 9. Wear of the master cylinder piston.

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