What are the reasons for stalling when starting?
2 Answers
Reasons for stalling when starting: 1. No fuel in the tank; 2. The battery voltage is too low, causing the starter motor to fail to start or not reach the starting speed; 3. Faulty idle motor, characterized by stalling immediately after starting if no throttle is applied; 4. Fuel line blockage, commonly seen in vehicles that use poor-quality gasoline, characterized by stalling immediately after starting if no throttle is applied; 5. Vehicle control system malfunction, which is rare but cannot be ruled out, as a control system failure can cause all vehicle functions to fail; 6. Intake pipe blockage, possibly due to foreign objects entering, check the pipes from the air intake, air filter to the throttle; 7. Faulty spark plugs or high-voltage wires.
I've been driving manual transmission cars for over a decade. The most common cause of stalling during startup is clutch operation issues - if you release it too quickly without matching the throttle, the engine will stall directly. Automatic transmission cars don't have this problem unless there's fuel system failure, like a fuel pump breakdown. During my novice days, I often stalled at uphill intersections, with honking from drivers behind being extremely embarrassing. The key is to practice coordinating clutch and throttle timing. Environmental factors like low oil temperature during cold starts also make stalling more likely - just warm up for 2-3 minutes. Severe engine carbon buildup can also cause instability, which improves significantly after cleaning. In summary, most cases aren't serious problems, but pay attention to driving techniques and avoid sudden acceleration.