Why does the engine stall during hill start and stop?
2 Answers
There are two main reasons for engine stalling during hill start and stop: first, the clutch is released too low; second, the handbrake is released without applying throttle. Below is relevant information about Subject 2: 1. Test items: The test includes five mandatory items - reverse parking, parallel parking, hill start and stop, right-angle turn, and curve driving (commonly known as S-turn). Some regions have a sixth item of highway toll card collection. 2. Passing criteria: The full score is 100 points, with evaluation standards set for failing, 20-point deduction, 10-point deduction, and 5-point deduction. For large buses, tractors, city buses, medium buses, and heavy trucks, a score of 90 is required to pass; for other vehicle types, a score of 80 is sufficient.
I remember when I was first learning to drive, I often stalled during hill starts, which was so embarrassing! The key issue was my lack of proficiency in clutch control. When going uphill, the car needs more power to start. If the clutch is released too quickly or abruptly, and the throttle isn't pressed deep enough, the engine gets bogged down and stalls instantly. Another issue was not fully releasing the handbrake or letting it go too early, causing uneven force distribution and stalling. The method I learned was: first, press the brake and clutch, then shift into first gear; slowly lift the clutch to find the biting point, and when the car slightly vibrates, gently press the throttle to add power; then release the handbrake and start steadily. Just find a safe, less busy hill to practice more, and don't get discouraged—every beginner goes through this phase. Also, check if the clutch is aging or excessively worn, as a slipping clutch in older cars makes stalling more likely. Take it slow, and safety first.
