Car Engine Won’t Turn Over: Troubleshooting Guide

If you’re experiencing a situation where your car engine won’t turn over, it can be a frustrating and stressful experience. However, before you call for a tow truck, there are a few troubleshooting steps you can take to try and diagnose the issue yourself.

1. Check the Battery

The most common reason why a car engine won’t turn over is a dead battery. To check the battery, follow these steps:

1. Open the hood and locate the battery.
2. Check the battery terminals for any corrosion or loose connections. If the terminals are corroded, clean them with a battery terminal cleaner.
3. Use a voltmeter to test the battery voltage. The battery should read around 12.6 volts. If the battery voltage is below 12 volts, it may need to be replaced.

2. Check the Starter Motor

If the battery is in good condition, the next step is to check the starter motor. The starter motor is responsible for turning over the engine. To check the starter motor, follow these steps:

1. Locate the starter motor. It is usually located on the side of the engine.
2. Tap the starter motor with a hammer. This may help to loosen up any stuck parts.
3. Try to start the car again. If the car starts, the starter motor may need to be replaced.

3. Check the Ignition Switch

The ignition switch is responsible for sending a signal to the starter motor to turn over the engine. To check the ignition switch, follow these steps:

1. Insert the key into the ignition and turn it to the “on” position.
2. Listen for a clicking sound. If you hear a clicking sound, the ignition switch is probably working.
3. If you don’t hear a clicking sound, the ignition switch may need to be replaced.

4. Check the Fuel System

If the battery, starter motor, and ignition switch are all in good condition, the next step is to check the fuel system. To check the fuel system, follow these steps:

1. Check the fuel level. If the fuel tank is empty, add fuel.
2. Check the fuel lines for any leaks or blockages.
3. Check the fuel filter. If the fuel filter is clogged, it may need to be replaced.

5. Check the Spark Plugs

The spark plugs are responsible for igniting the fuel in the engine. To check the spark plugs, follow these steps:

1. Remove the spark plugs.
2. Inspect the spark plugs for any damage or wear.
3. If the spark plugs are damaged or worn, they may need to be replaced.

6. Check the Timing Belt

The timing belt is responsible for synchronizing the movement of the pistons and valves in the engine. To check the timing belt, follow these steps:

1. Open the hood and locate the timing belt.
2. Inspect the timing belt for any cracks or fraying.
3. If the timing belt is damaged or worn, it may need to be replaced.

7. If All Else Fails, Call for a Tow

If you have tried all of the troubleshooting steps above and your car engine still won’t turn over, it is best to call for a tow. A mechanic will be able to diagnose the problem and repair your car.

Remember, if you are not comfortable performing any of the troubleshooting steps above, it is always best to consult a mechanic.