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Why does the car automatically shut off when stopping?

1 Answers

CooperDella

07/30/25 6:40am

The following are the reasons why a car automatically shuts off when stopping: 1. Misoperation: Especially for beginners, such as shifting to the wrong gear, braking too hard, improper clutch-throttle coordination, or accidentally turning off the car with the key. Simply restart the engine. 2. Dirty throttle/idle speed control valve: This mostly occurs at idle speed, often accompanied by engine shaking. Lightly press the accelerator when restarting to provide fuel for ignition. It is recommended to clean the throttle promptly. 3. Fuel system failure: Causes include poor fuel quality, running out of fuel, fuel pump burnout, clogged fuel lines, faulty fuel pump fuse, or defective fuel pressure sensor. Inspect related components. 4. Ignition system failure: Includes spark plug issues, faulty ignition coil/module, or aging cylinder wires. Check related components. 5. Throttle or idle speed control valve failure: These are critical components of the engine intake system and relatively precise parts. Many cases of engine stalling or failure to start are due to damaged throttle assemblies or idle speed control valves.

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