What Causes a Car to Fail to Start After Automatic Shutdown?

1 Answers
AriannaAnn
07/29/25 9:14pm
There are several main reasons why a car may fail to start after automatic shutdown: throttle failure, fuel pump not supplying fuel, timing belt breakage, and coolant temperature sensor failure. When the throttle position sensor malfunctions, the data received by the sensor becomes inaccurate, typically leading to excessively high engine idle speed and causing the engine to shut down. If the car suddenly fails to start, it's important to check whether there is any sound from the fuel pump inside the fuel tank under the rear seat during ignition. If the fuel pump malfunctions, it will cause issues with fuel supply, leading to insufficient fuel delivery, which naturally results in engine shutdown.
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