Most drivers have seen the check engine light come on at some point. It is easy to hope it is something minor and keep driving. But when that light starts flashing instead of staying solid, that is a very different warning.
A flashing check engine light usually means your vehicle has a serious engine misfire. In simple terms, one or more cylinders are not burning fuel the way they should. When that happens, unburned fuel can move into the exhaust system and overheat the catalytic converter. That part is expensive to replace, so a flashing light is your car’s way of telling you not to ignore the problem.
WHY THIS WARNING SHOULD NEVER BE IGNORED
A steady check engine light can point to many issues, some urgent and some less so. A flashing light is more serious. It often means the problem is happening right now and could cause damage if you keep driving.
Along with the flashing light, you may notice rough idling, shaking, loss of power, poor acceleration, or a smell of fuel. Your car may feel like it is struggling, especially when you press the gas pedal. In some cases, the engine may sound different or seem to hesitate.
If you keep driving in that condition, the repair bill can grow quickly. What starts as a spark plug or ignition coil issue can turn into damage to the catalytic converter or other engine components.
COMMON CAUSES OF A FLASHING CHECK ENGINE LIGHT
There are several possible reasons this happens. Worn spark plugs are one of the most common. Bad ignition coils can also stop the engine from starting up properly. Problems with fuel injectors, vacuum leaks, low fuel pressure, or sensor issues may also cause a misfire.
In some cases, the cause can be more serious, such as internal engine trouble. That is why proper diagnosis matters. Taking a guess and changing parts without testing them can cost you time and money.
GET IT CHECKED!
If your check engine light is flashing, do not take chances with engine damage. Contact Heath’s Airport Auto to schedule an inspection and get a clear diagnosis from an experienced team you can trust.
REFERENCES
National Institute for Automotive Service Excellence
https://www.ase.com/
Consumer Reports, What Your Check Engine Light Means
https://www.consumerreports.org/cars/car-maintenance/what-your-check-engine-light-means-a2737983689/
AAA, Warning Lights and What They Mean
https://exchange.aaa.com/automotive/maintenance/warning-lights-dashboard/
