What Causes a Sylphy to Suddenly Stall While Driving?
2 Answers
Reasons for sudden stalling while driving are as follows: Electrical Circuit Fault: This may occur due to low-voltage power failure during driving, causing the engine to stall. In this case, you can primarily check the ignition and starter switches, as well as the fuse box. Electrical Component Fault: This issue is usually related to the ignition coil, capacitor, or electronic ignition module. The car may start initially but stall after a while, then start again only to stall once more. Fuel System Fault: Possible causes include a damaged fuel pump, ruptured fuel line, clogged carburetor fuel inlet, or an empty fuel tank. However, the car may still be able to restart under these conditions, though with great difficulty.
My Sunny had the same issue last time, it was really scary. It suddenly stalled halfway, and all the dashboard lights came on. Later, the inspection found that the fuel pump was dead and couldn't supply fuel. The bottom of this car's fuel tank tends to accumulate impurities, which can clog the filter screen over time. Another time, it was a poor contact in the ignition coil, and the car shook a few times before dying. For older cars, pay attention to the intake pressure sensor; if that thing fails, it can also cause the ECU to misjudge. Also, if the 92-octane fuel quality is poor, the fuel injectors can get clogged and easily cause stalling. If you can't start the car after three attempts in a short time, quickly turn on the hazard lights and push it to the roadside. Don't force it to keep driving—it's too dangerous.
