Check Engine Light And Cruise Control Flashing Subaru Legacy
Subaru Legacy is a midsize sedan that has been on the market since the late 80s. It is known for its performance, reliability, and overall quality. However, some Legacy owners have reported an issue with the Check Engine light and Cruise Control flashing simultaneously. This issue can be frustrating and confusing for drivers, but it is important to understand the possible causes and solutions.
What does it mean when Check Engine Light and Cruise Control Flashing?
The Check Engine light and Cruise Control flashing simultaneously is an indication that there is a problem with the engine or transmission system. This can be due to a variety of factors such as a malfunctioning sensor, a faulty valve, or a damaged wire. When the Check Engine light comes on, it means that the computer in your vehicle has detected a problem and stored a diagnostic code. The Cruise Control flashing light is an indication that the system has been disabled due to the issue in the engine/transmission system.
Why is Check Engine light and Cruise Control Flashing in your Subaru Legacy?
There are several reasons why the Check Engine light and Cruise Control might be flashing simultaneously in your Subaru Legacy, such as:
- Malfunctioning Oxygen Sensor: The oxygen sensor in your car measures the amount of oxygen in your vehicle's exhaust system. If it fails or malfunctions, it can cause the Check Engine light to come on and the engine to run poorly. When the engine runs poorly, it will cause the Cruise Control to stop working.
- Faulty Catalytic Converter: The catalytic converter reduces the amount of harmful pollutants in the exhaust system. If it fails, it can cause the Check Engine light to come on and the engine to run poorly. This can also cause the Cruise Control to fail.
- Loose Fuel Cap: A loose fuel cap can cause the Check Engine light to come on. It can also prevent the Cruise Control from working properly, as the system will not be able to maintain a consistent speed.
- Transmission Issues: If there is a problem with the transmission system, it can cause the Check Engine light to come on and the Cruise Control to stop working. This can be due to a variety of reasons such as a faulty transmission control module or a damaged valve body.
How to Fix Check Engine Light and Cruise Control Flashing in your Subaru Legacy
Fixing the Check Engine light and Cruise Control flashing issue in your Subaru Legacy will depend on the exact cause of the problem. Here are some possible solutions:
- Tighten or Replace Fuel Cap: Check the fuel cap to ensure it is tightened properly. If it is loose, tighten it and see if the issue resolves. If the fuel cap is damaged, it may need to be replaced.
- Replace Oxygen Sensor: If the oxygen sensor is malfunctioning, it may need to be replaced. A mechanic can run a diagnostic test to determine if this is the problem.
- Replace Catalytic Converter: If the catalytic converter is faulty, it will need to be replaced. This is a more expensive repair, but necessary for the proper functioning of your vehicle.
- Transmission Repair: If the issue is with the transmission system, it will require a professional diagnosis and potential repair. This can be a costly repair, but necessary to ensure your vehicle is running properly.
Preventing Check Engine Light and Cruise Control Flashing in your Subaru Legacy
Even though some issues are inevitable, there are steps that you can take to prevent the Check Engine light and Cruise Control flashing issue in your Subaru Legacy. Here are some tips:
- Regular Maintenance: Regular maintenance is critical to ensuring your vehicle runs smoothly. Follow the manufacturer's recommended maintenance schedule, which includes things like changing the oil, replacing air filters, and inspecting the engine and transmission system.
- Address Issues Promptly: If you notice any issues with your vehicle such as strange noises or difficulty starting, address them promptly. The longer you wait, the more damage can be done which can lead to more expensive repairs.
- Use Quality Parts: When replacing parts in your vehicle, use high-quality parts that are specific to your make and model. This will help ensure that your vehicle is running properly and reduce the likelihood of issues in the future.
Conclusion
The Check Engine light and Cruise Control flashing simultaneously in your Subaru Legacy can be an indication of a problem with the engine or transmission system. This can be due to several factors such as a malfunctioning sensor, a faulty valve, or a damaged wire. It is important to address this issue promptly to prevent any further damage to your vehicle. Regular maintenance and addressing issues promptly are critical to preventing this issue in the future. If you are unsure about the cause of the issue, it is best to take your vehicle to a professional mechanic for a diagnosis and potential repair.