Why does the car stall when starting?
2 Answers
Reasons for car stalling when starting: 1. Fuel quality issues, it is recommended to try a different gasoline grade or refuel at another location; 2. Excessive carbon buildup in the throttle body, which is also a key cause of unstable idling and stalling problems. It is advised to have the throttle body cleaned at a professional repair shop or 4S store; 3. Low fuel pump pressure or malfunction can easily lead to insufficient fuel supply causing stalling. When a car hasn't been driven for a long time, the engine oil becomes viscous and may cause stalling. This phenomenon isn't a major issue - just warm up the car after starting; 4. The driver's improper control of the clutch, being unfamiliar with the clutch engagement point. If the foot moves too quickly from the clutch free play to the engagement point, it can easily cause the car to stall when starting.
The issue of stalling when starting the car is something I often discuss with friends, especially since it's common among beginners. When driving a manual transmission, the main problem lies in improper coordination between the clutch and the accelerator. Releasing the clutch too quickly can suddenly increase the engine's load, making it prone to stalling; stepping too lightly on the accelerator means insufficient power. For example, when I teach at the driving school, students often get nervous and release the clutch too abruptly when starting, or stall due to rolling back on a slope. This situation affects safety, especially stalling suddenly at an intersection, which may lead to rear-end collisions. The solution is to slowly release the clutch while gently applying the accelerator—developing muscle memory can prevent this. Occasionally, automatic transmission cars may also stall, possibly due to computer control issues. Don’t underestimate this; practice the basics and find an open area to train more. After each start, pay attention to the smooth sound of the engine.
