Dodge Charger Check Engine Light

What Does Your Check Engine Light Mean?

The check engine light on your Dodge Charger is one of the most alarming warning lights on your vehicle’s dashboard, since it typically means that the engine may be nearing red-alert levels.

Vehicles have their own form of communication, known as the onboard diagnostics system. This system comprises all the lights and symbols on your Dodge’s dashboard, and each indicates a vehicle issue or malfunction.

The check engine light, or CEL, is often depicted as an engine block icon or as specific words like “check engine.” A solid check engine light on the Charger indicates a serious, though not urgent, issue. However, if the check engine light is flashing, you need immediate repair or diagnosis.

Common Causes for the Check Engine Light to Illuminate (And Their Solutions)

The check engine light on your Charger's dashboard may come on for several reasons, from a loose gas cap to a more serious issue with the catalytic converter.

Here are some of the most common reasons your Charger’s check engine light has turned on:

• Loose or Damaged Gas Cap: One of the most common causes of a check engine light is a cracked or improperly sealed gas cap, which can allow fuel vapors to escape and trigger the light.

Solution: Make sure the gas cap is tightened securely, or replace it if it’s damaged. The light should turn off shortly after the cap is tightened or replaced.

• Faulty Oxygen Sensor (O2 Sensor): The oxygen sensor monitors the amount of unburned oxygen in your Charger’s exhaust and helps regulate the fuel-air mixture. A faulty sensor can decrease fuel efficiency and increase emissions.
  
  Solution: Sensor replacement, which is usually less expensive than other repairs.
• Catalytic Converter Issues: The catalytic converter helps reduce harmful emissions. If it's malfunctioning, your Charger will produce higher emissions and may even fail a smog test. Signs include a noticeable drop in fuel economy and a sulfur-like smell from the exhaust.

Solution: Replace the catalytic converter.

• Mass Airflow Sensor (MAF) Failure: The MAF sensor measures the amount of air entering the engine to determine the proper fuel mixture. A malfunctioning MAF sensor can lead to poor fuel economy, stalling, and engine hesitation.
  
  Solution: Clean or replace the MAF sensor.
• Worn Spark Plugs or Ignition Coils: Spark plugs and ignition coils, which are essential for engine combustion, can wear out over time. When they do, this leads to engine misfires and rough idling. If left unaddressed, it can damage the catalytic converter.

Solution: Replacing spark plugs and ignition coils at recommended service intervals is crucial for smooth engine performance.

• Vacuum System Leaks: The vacuum system supports various engine functions, and a leak can cause issues such as high idle speed or misfires. Symptoms of a vacuum leak include a hissing sound from under the hood or stalling.
  
  Solution: Leaks often occur in hoses and seals, which can be repaired or replaced.
• Battery and Charging System Problems: While this isn’t a direct engine issue, a failing battery or charging system can trigger the check engine light. Signs include difficulty starting your DOdge or electrical components not working correctly.
  
  Solution: Check battery connections and the charging system. You may need a replacement.

How to Complete a Dodge Charger Check Engine Light Reset

If you’ve diagnosed and resolved the underlying issue, the final step is to reset the light.

Here are several ways to reset it:

1. Use an OBD-II Scanner: The easiest way to clear the error codes is to use an OBD-II scanner. Plug the scanner into the diagnostic port, usually located under the dashboard, and follow the instructions to clear the codes.
2. Disconnect the Battery: If you don't have a code reader, disconnect the negative battery cable for about 15 minutes. This will reset the engine control module and turn off the check engine light. Remember to reconnect the cable securely.
3. Drive and Wait: Sometimes the light will reset itself after several drive cycles if the problem has been resolved. This method requires patience and time.

If you don’t feel comfortable resetting the check engine on your Charger, stop by Santee Chrysler Dodge Jeep RAM for help! We provide expert Dodge service in Lake City, Charleston, and other surrounding areas.

Please note that resetting your check engine light is not recommended for beginners or those without some automotive knowledge. Our certified technicians understand your Dodge inside and out. As the leading Dodge dealer near you, we are happy to assist in getting you back on the road safely and confidently!

Discover Dodge Charger Maintenance & Repairs You Can Count on at Santee CDJR

Don’t let a check engine light ruin your performance–visit one of the leading car dealerships near you in Manning, SC today!

Our factory-trained Dodge technicians specialize in diagnosing and repairing the full Dodge lineup, including the high-performance Charger. With access to cutting-edge diagnostic equipment and genuine OEM parts, our team can quickly identify the cause of your check engine light, perform necessary repairs, and help you get back on the road safely.

Beyond emergency repairs, we offer comprehensive maintenance services—such as routine oil changes and spark plug replacements—to ensure your Charger is always prepared for the road ahead. Schedule an appointment for Dodge service near you online today, or visit our service center in Manning, SC!