Why does a car with electricity and fuel fail to start?

[Katniss]

Reasons why a car with electricity and fuel fails to start: 1. Starter motor or engine malfunction; 2. Abnormal battery voltage; 3. Insufficient fuel level; 4. Faulty crankshaft position sensor; 5. Excessive carbon buildup in the throttle; 6. Fuel pump failure; 7. Incorrect gear selection. Solutions include: 1. Push-start method: One person pushes the car from behind while another inside depresses the clutch and engages the gear. Once sufficient speed is reached, ignite while giving fuel, then quickly depress the clutch pedal to start the engine; 2. Jump-start method: Find a car that can start normally, position both cars facing each other, open the hood, and connect the jumper cables with positive to positive and negative to negative terminals.

[StMaverick]

When I was younger, I drove quite a few cars, and there are usually several common reasons for this situation. If the car has power but won't start, it could be due to aging spark plugs or severe carbon buildup, preventing the gasoline from igniting. Alternatively, it might be an issue with the starter motor—either making a spinning sound without engaging or not making any noise at all. A faulty fuel pump could also prevent fuel from reaching the engine, even if the tank has gas. Additionally, the anti-theft system might be locked, or the engine control unit could be malfunctioning. Once, during an inspection, I found that the battery terminals were loose—there was power, but the connection was poor. When facing such issues, it's best to first check the spark plugs and fuses. If that doesn't solve the problem, seek professional repair instead of forcing it to run, as it could lead to a dangerous breakdown on the road. Regular maintenance should focus on the ignition system, and replacing spark plugs periodically can help prevent such issues.

[McLaila]

As a car enthusiast who often tinkers with vehicle repairs, I've encountered this issue of having both electricity and fuel but the engine not starting multiple times. Most of the time, it's due to a faulty ignition coil causing the spark plugs to malfunction; or fuel system problems like a burned-out fuel pump relay or clogged injectors from impurities. Poor electrical connections could also be the culprit, such as corroded starter motor terminals. Last time my car had this issue, it was a stuck starter motor - a few taps got it working temporarily, but long-term replacement was needed. When diagnosing, first listen for sounds: if the starter hums but doesn't turn, it's usually an ignition problem; complete silence means checking battery connections. A fuel pressure test can also confirm whether fuel delivery is normal. DIY-savvy friends can purchase a multimeter for self-checking, but for complex issues, it's wiser to consult a professional mechanic.

[Evie]

I've seen quite a few cars, and to put it simply, common reasons for failure to start fall into several categories: ignition system issues such as faulty spark plugs or coils; starting system problems like a damaged motor; fuel system blockages such as a clogged fuel pump or injector; sensor failures like a malfunctioning crankshaft position sensor; poor electrical connections or an activated anti-theft lock. Even with power and fuel, the problem often lies in these areas. It's advisable to check the simpler parts first, and if unresolved, take it to a repair shop for a comprehensive inspection to avoid wasting time and causing further issues.