Why Won’t My Car Start? 7 Common Causes

Turn the Key… Nothing Happens?

Few things are more frustrating than getting into your car, turning the key or pressing the start button, and discovering that your vehicle won’t start. Sometimes the cause is simple. Other times, a vehicle that won’t start may need professional diagnosis and repair. Here are seven common reasons your car may not start.

1. A Weak or Dead Battery

The battery is one of the first things to consider when your car won’t start. If you hear clicking when you try to start the vehicle, see dim interior lights, or notice that electrical components aren’t working normally, the battery may be low or failing. Cold Wisconsin temperatures can also be especially hard on vehicle batteries.

2. A Faulty Starter

The starter is responsible for turning the engine over when you start the vehicle. If the battery has enough power but the engine doesn’t crank normally, the starter or another part of the starting system could be the problem.

3. Fuel Delivery Problems

Your engine needs fuel to run. A problem with the fuel pump, fuel injectors, or another part of the fuel system can prevent the engine from starting properly. If the engine cranks but doesn’t actually start, fuel delivery is one possibility that may need to be investigated.

4. A Problem With the Ignition System

The ignition system helps create the spark needed for combustion. Problems with components such as spark plugs or ignition coils can make it difficult for an engine to start or keep running.

5. A Faulty Alternator

The alternator charges your battery while the engine is running. If the alternator isn’t charging properly, the battery may eventually lose enough power that the vehicle won’t start. This can sometimes be preceded by warning signs such as dimming lights or electrical problems.

6. An Electrical Problem

Modern vehicles rely on many electrical systems and computer-controlled components. A wiring issue, blown fuse, faulty sensor, or other electrical problem can sometimes prevent a vehicle from starting.

7. You Simply Ran Out of Fuel

It sounds obvious, but it happens! If your vehicle won’t start, make sure there is actually fuel in the tank before assuming something more serious is wrong.

What Should You Do If Your Car Won’t Start?

If your vehicle won’t start after checking the simple possibilities, avoid repeatedly trying to start it. A professional inspection can help determine whether the problem is related to the battery, starter, fuel system, ignition system, or another component. If you need auto repair in Green Bay, WI, MotorAbility can help diagnose the problem and determine what your vehicle needs.