Why Won't My Car Start? 5 Quick Checks

 You are late, you turn the key, and nothing happens. Before you call a tow truck, take a minute to listen. The way your car fails to start tells you a lot.

Start with the basics when your car refuses to start.

Photo by Ashutosh Dave on Unsplash

What do you hear?

• Nothing, and the dashboard lights are dim or dead: most likely a flat battery or a bad connection.
• A fast clicking sound: the battery is too weak to turn the engine.
• The engine turns normally but does not start: the problem is probably fuel or spark, not the battery.

5 quick checks

1. Gear and steering lock. An automatic car must be in Park or Neutral. In a manual car, press the clutch. If the steering wheel is locked, move it gently left and right while you turn the key.
2. The key. Many modern keys have a chip. A weak key battery or a security warning light on the dashboard can stop the engine. Try your spare key.
3. The battery. Look at the terminals with the engine off. White or green powder, or loose clamps, can block the electricity. If the battery is weak, a jump-start may help.
4. The fuel. Check the fuel gauge. It sounds obvious, but gauges can be misread in a rush.
5. Short attempts only. Try for a few seconds at a time and wait between tries. Cranking for a long time can overheat the starter motor and drain the battery even more.

When to call a mechanic

If the engine turns normally but will not start, the cause could be the fuel pump, a filter, a sensor or the ignition system. These need a proper diagnosis. If you smell fuel, stop trying to start the car and keep sparks and flames away.

Golden tip: A car that starts slowly for a few days is warning you. Get the battery tested before it leaves you stuck.

What was the strangest reason your car refused to start? Share it in the comments.

This article is for general information only. Cars differ, so always follow your owner's manual and ask a qualified mechanic if you are unsure.