Troubleshooting Your Car When It Won’t Start After Running Out of Gas

Many car owners face the frustration of a car that won't start after running out of gas. Whether you're dealing with a fuel pump failure, a clogged fuel filter, or other issues, the following steps can help you diagnose and potentially fix the problem.

Check the Fuel System

When a car runs out of gas, the fuel system can be compromised. Start your troubleshooting process by checking the fuel system for any signs of damage or malfunction. Here are some key components to inspect:

Fuel Pump

The fuel pump is crucial for providing fuel to the engine. After running out of gas, it can overheat and potentially become damaged. To check if the fuel pump is working, listen for a humming sound from the fuel tank when you turn the ignition key. If no sound is heard, the fuel pump might need to be replaced.

Fuel Filter

A clogged fuel filter can prevent the engine from starting. Sediment and debris can accumulate in the filter when the tank is empty. If you suspect the fuel filter is clogged, consider replacing it to ensure the fuel system is clear.

Prime the Fuel System

Running out of gas can introduce air into the fuel lines, making it difficult for the engine to start. To eliminate air from the fuel lines:

Turn the Ignition Key

Turn the ignition key to the on position, but do not start the engine. This allows the fuel pump to run and pressurize the fuel lines, which will help to expel any air that has entered.

Inspect the Battery

A weak or dead battery can prevent the car from starting. Ensure that the battery is charged and in good condition. If the car has been repeatedly trying to start, the battery may be drained. If necessary, use a jumper cable to jump-start the car.

Check Engine Codes

If your car has an onboard diagnostics (OBD-II) system, a scanner can be used to check for any trouble codes that might indicate why the engine is not starting. These codes can provide valuable information about potential issues in the fuel system, ignition system, or other components.

Look for Other Issues

Additional issues may affect the car's ability to start. Check the following components:

Ignition System

Ensure the ignition system is functioning properly. Check the spark plugs, ignition coils, and ignition wires for any signs of wear or damage. All connections should be secure, and fuses must be intact to provide proper electrical flow.

Try Starting the Car

After completing the above steps, try starting the car again. If it still won't start, it may be time to seek professional help from a mechanic. They can perform a thorough diagnosis and offer more specialized services if needed.

Additional Tips:

When dealing with a car that won't start after running out of gas, it's important to have a minimum of 17 liters of fuel in the tank. Avoid relying on less than 15 liters, as this can lead to starting difficulties. If the car doesn't start on the first try, switch the ignition on and off five times to run the fuel pump and ensure the fuel lines are clear of air. Don't replace parts unless necessary, as this can be expensive and time-consuming.

For Honda Civic Gen 5 owners, it's especially critical to ensure the car has at least 15 liters of fuel in the tank. Switching the ignition on and off five times can help the fuel system prime properly, allowing the car to start.

Remember, proper maintenance and preventive measures can save you time, money, and frustration. Always check your car's fuel level and keep a well-stocked emergency fuel can in your vehicle.