Why is my check engine light flashing and then goes off?
A flashing check engine light usually refers to cylinder misfiring. Misfiring should be investigated and resolved promptly – that’s why the light flashes versus simply staying steady – because misfiring can damage the catalytic converter which can result in additional costly repairs.
What can cause check engine light to flash?
Common Reasons Why Your Check Engine Light is Flashing
- Loose Fuel Cap. In many instances, a flashing check engine light doesn’t indicate that there’s something seriously wrong.
- Bad Catalytic Converter.
- Faulty Airflow Sensor.
- Spark Plugs Need Replaced.
- Bad Oxygen (O2) Sensor.
What causes the Check Engine light to flash?
Many issues could cause the check engine light to flash, including fuel mixture issues, ignition system problems, and low compression issues. Most of the time, a flashing light engine is due to an engine misfire. Therefore, in this article, we will focus mostly on engine misfire issues that cause check engine light flashing.
How much does it cost to fix a flashing check engine light?
How Much Does It Cost to Fix Engine Misfire or Flashing Check Engine Light Issues? Engine Issue Estimated Price Damaged or loose fuel cap $5.0 Oxygen sensor $150.0 Spark plugs or wires $100 – $200 Purge control valve $150
Can you drive with a blinking check engine light?
How far can you drive with a blinking engine light? It is not recommended to drive at all with a flashing check engine light. You can, in most cases, drive the closest way to a repair shop. We do recommend towing it if the repair shop is located far away, though.
How does the Check Engine light system work?
The OBD system—as it relates to the check engine light—monitors and controls the amount of emissions produced during the operation of your car by constantly checking and correcting input values to the appropriate systems with the help of sensors and actuators, including: