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Why is the check engine light flashing on my Dodge?

If the check engine light on your Dodge vehicle is flashing, it's a sign that there is a serious problem that requires immediate attention. The flashing light indicates a malfunction in the engine or emission control system that could potentially lead to further damage if left unaddressed.


Potential Causes of a Flashing Check Engine Light


There are several possible reasons why the check engine light may be flashing on your Dodge vehicle. Some of the most common causes include:



  • Misfiring engine: A misfiring engine can cause unburnt fuel to enter the exhaust system, which can damage the catalytic converter.

  • Faulty spark plugs or ignition coils: Worn or malfunctioning spark plugs or ignition coils can also cause engine misfiring.

  • Fuel system issues: Problems with the fuel injectors, fuel pump, or fuel lines can lead to an improper fuel-air mixture, causing the engine to misfire.

  • Catalytic converter failure: A failing catalytic converter can also trigger a flashing check engine light, as it is unable to properly convert harmful emissions.


It's important to address the underlying issue as soon as possible to prevent further damage to your vehicle's engine or emission control system.


Diagnosing and Resolving the Issue


If your Dodge's check engine light is flashing, the best course of action is to have the vehicle diagnosed by a professional mechanic. They will use an OBD-II (On-Board Diagnostics) scanner to read the trouble codes stored in the vehicle's computer, which will help identify the specific problem.


Once the issue has been identified, the mechanic can then recommend the appropriate repairs, such as replacing faulty spark plugs, ignition coils, or the catalytic converter. It's crucial to address the problem promptly to avoid further damage and ensure the safety and reliability of your Dodge vehicle.


Remember, a flashing check engine light is a serious warning sign that should not be ignored. By taking prompt action and having the issue diagnosed and repaired, you can help protect the long-term health of your Dodge's engine and emission control system.

Will a bad transmission cause a flashing check engine light?


Often (though not always) a faulty transmission will trigger an engine diagnostic code and trip the Check Engine Light to let you know. Same goes if your engine overheats because of a bad transmission. Problems with a solenoid, speed sensor, slippage, and more can cause the Check Engine Light to come on.



Can I drive my car with the check engine light blinking?


If the engine light is flashing, it's best to stop driving as soon as it's safe to do so. Continuing to drive can cause further damage to the engine or other components, leading to more expensive repairs. In general, you should: Pull Over Safely: Find a safe place to stop as soon as possible.



What is the most common reason for a check engine light on a Dodge Ram 1500?


What could cause the check engine light to come on in a Ram 1500?

  • One of the most normal and many cause is that your Ram 1500 gas cap is loose, damaged or missing.
  • Your catalytic converter is bad or going bad.
  • Your Ram 1500 has a vacuum leak.
  • The battery is low or dead.
  • Issues with any aftermarket items.



Will low oil cause engine light to flash?


Yes, low oil levels can cause the check engine light to come on in your vehicle. While the check engine light is often associated with issues related to the engine's performance or emissions, low engine oil can lead to insufficient lubrication, which can trigger various sensors and result in the light activating.



Why is my check engine light flashing and car sputtering?


Usually, when the check engine light is flashing and the car is sputtering and shaking, that means you're dealing with an engine misfire serious enough to possibly damage the catalytic converter and in most cases the PCM/ECM will kill the injector to prevent that.



How much does it cost to fix a flashing check engine light?


Diagnostic fees alone can range from $50 to $200, while repairs can cost anywhere from a few dollars for a loose gas cap to several thousand dollars for more complex problems. If you find yourself facing a check engine light, it's important not to ignore it.



What does a blinking check engine light mean on a Dodge Ram?


severe engine misfire
If the check engine light in your Ram 2500 starts flashing, that means that the problem needs abrupt attention and your Ram should be brought in quickly. This blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system.



What is the most common cause of flashing a check engine light?


A blinking check engine light will show up on your dashboard is almost always correlated with engine misfires. A misfire means that the engine is dumping uncombusted fuel into your car's exhaust system. Engine misfire is a serious issue because it can quickly raise the temperature of the catalytic converter.



Can bad spark plugs cause flashing check engine light?


Worn/failed spark plugs, coil packs, or spark plug wires can trigger your check engine light to come on. In today's cars, if a spark plug fails and can no longer ignite the air-fuel mixture, then the most obvious event should be the check engine light coming on or even flashing.



What is the most common cause of the check engine light?


The most common cause is the oxygen sensor, which measures the oxygen remaining after the air-fuel mixture ignites. If this sensor detects an issue with oxygen use or burns out over time, the check engine light will come on. This issue leads to poor fuel economy and can cause severe engine damage if left unaddressed.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.