Why does an automatic transmission car stall after starting?
2 Answers
Automatic transmission cars may stall after starting due to the following reasons: 1. Electrical circuit failure: Stalling can occur during driving due to low-voltage power failure, quenching, short circuits in the fuse box or low-voltage lines. 2. Equipment failure: Faults in components such as the ignition coil, capacitor, or electronic ignition module can cause stalling after starting. 3. Use of inferior fuel: Excessive carbon buildup in the engine can lead to stalling after starting. Below is more information about automatic transmission cars: 1. To start an automatic transmission car, insert the key, press the brake pedal, shift from P (Park) to N (Neutral), turn the key to start the engine, shift to D (Drive), and release the brake to begin driving. 2. Automatic transmission cars typically use hydraulic transmission devices to replace the mechanical clutch in manual transmission cars, hence there is no clutch pedal.
I've been driving for over a decade and have encountered automatic transmission stalling issues several times, usually caused by common faults. Low or aging battery power is the most prevalent issue - insufficient power during startup can cause engine hesitation and stalling. Fuel system problems like a faulty fuel pump or clogged filter can also lead to immediate stalling after startup due to poor fuel delivery. Starter motor failure, resulting in weak rotation, may also cause stalling. Last time I had my car serviced, the mechanic reminded me that a severely dirty air filter causing insufficient air intake or serious throttle valve carbon buildup can also trigger this issue. Beginner mistakes like not pressing the brake firmly enough or selecting the wrong gear (must be in P for startup) can activate the vehicle's self-protection mechanism to stall. It's recommended to check if dashboard lights are normal before starting. If stalling occurs frequently, promptly visit a repair shop for comprehensive electrical and engine system checks to avoid road hazards and travel disruptions.
