The Ford Fusion's "check engine" light indicates the car's onboard diagnostics has detected an exhaust leak, mIS Fire or engine timing issue and should be serviced promptly. The warning is designed by Ford to flash if the problem is serious or produce a steady glow if the issue is less emergent. A flashing warning is usually associated with large amounts of unburned fuel being dumped into the exhauSTSystem. This scenario can elevate quickly to overheating and catalytic converter failure. In other circumstances a faulty spark plug could be causing the light to flash and while this is not considered life-threatening, should be serviced soon. O2 sensor failure can also trigger the "check engine" indicator as well as a dying battery or alternator. Major auto retailers should be able to hook up an OBDII scanner to help diagnose the problem.
Leonard S.
April 10, 2020
There is a risk that the engine will emit harmful emissions out of the tailpipe whenever the check engine light is on. Certain sections of the device can be affected in extreme cases, such as the catalytic converter or the oxygen sensor. Whether you are having performance problems or not, a blinking cel means that there was an engine misfire. You will pull off the road when this occurs and not drive the vehicle as this will destroy the catalytic converter, which can cost more than $1000 to repair.
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