Skip the auto shop - Our mechanics make house calls

Q: Blinking Check Engine Light

asked by on

I have a blinking CEL. I disconnected each ignition coil while the engine was running and there was a drop in performance as I disconnected each one. Does this mean that the ignition system is not my problem?

My car has 110000 miles.
My car has an automatic transmission.

As you may know, the Check Engine Light can come on for many different reasons, including for the ignition coils being faulty. Many times, when there are no visible signs or obvious symptoms of the car running poorly, it requires hooking the vehicle up to a scanning tool to download any potential faulty codes in the computer in order to more specifically narrow down what may be causing it to come on. I would recommend having an expert from YourMechanic come to your location to diagnose the Check Engine Light firsthand and make the necessary repairs.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Blinking Check Engine Light

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Crankshaft bearing replacement cost 2008 BMW M3

Hello - unfortunately, this is not a service YourMechanic offers at this time. Thanks for thinking of us though!

Q: Ignition key is locked

Try to move the key closer to the steering column, to see if the key is recognized. If the problem is corrected, then you just need to keep the key closer to the steering column if the driver's side door...

Q: When I turn on my AC the radiator fans do not turn on. The fans do come on when the car warms up so I know they are working and the fuses are good. The AC compressor does come on and the air blows ice cold when the car is moving. Car is a 2006 Chrysler Sebring Sedan 2.7l v6.

The control circuit for the fans needs to be checked. For example, there is usually a condenser fan relay in the A/C electrical controls. There could be a fault with that relay and/or wiring problems, perhaps even just a loose...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...