Why does the car light turn on but the engine won't start?
2 Answers
The car light turning on but the engine failing to start may be due to insufficient fuel pressure or incorrect throttle position sensor signals. Related explanations: 1. Other possible causes: The issue could also stem from a malfunctioning fuel pump, faulty spark plugs, or a defective distributor. It's advisable to conduct a comprehensive inspection at an auto repair shop or 4S store. 2. Precautions: If the vehicle has been idle for too long, the engine oil between the piston rings, pistons, and cylinder walls may drain, leading to insufficient compression pressure and failure to start. It's recommended to start the car daily, even if not driving it, to check the operational status of all systems.
I've encountered this before! If the lights turn on, it means the battery still has power, but failure to start usually comes down to these issues: the starter motor is broken (you'll only hear a clicking sound when turning the key); the fuel pump might have failed (last time my pump burned out when the tank was nearly empty); crankshaft position sensor failure is particularly common (when it fails, the ECU can't determine the engine position); or the spark plugs might be soaked in oil or severely carbon-fouled. I remember one winter morning when it wouldn't start no matter what - turned out to be a damp ignition coil leaking electricity. Oh, and remember to check the dashboard when turning the key - if the tachometer needle doesn't move at all, it's probably an engine signal issue.
