What does it mean when your check engine light comes on and blinks?

What does it mean when your check engine light comes on and blinks?

A flashing check engine light indicates a much more serious issue. Most often it means that the engine is misfiring and unburned fuel is getting into the exhaust system. This raises the temperature of the catalytic converter and can cause critical damage.

Why is my Jeep shaking and check engine light flashing?

Usually, when the check engine light is on and the car is shaking, that means you’re dealing with an engine misfire. Basically, the check engine light comes on whenever there’s an issue that could increase vehicle tailpipe emissions.

How long can you drive with check engine light blinking?

You will need to drive for about 50 to 100 miles after clearing the car’s computer. Your car’s computer will monitor all the sensors and register the results as you drive.

What do you do when your engine light flashes?

Usually you will be able to feel a noticeable difference in the way your vehicle is running. When this Check Engine or Service Engine Soon light flashes, you should pull over safely and shut the vehicle off as soon as possible. Have the vehicle towed to your trusted repair facility for a diagnosis and repair.

What does it mean when the check engine light flashes 11 times?

What Does It Mean When Your Check Engine Light Flashes 11 Times? a flashing engine light indicates that it has failed to run, but that it is failing because it is ill-performing, and as a consequence, raw, unburnt fuel that has entered the engine and reached its exhaust system.

Why does my check engine light flash 11 times?

It means that one or more of the emissions systems is not ready, also known as the I/M readiness test. All the systems will be tested as you drive the vehicle, and the light usually stops blinking after a few driving cycles.

What does the Check Engine light mean on a Jeep Grand Cherokee?

A flashing check engine light is your Jeep Grand Cherokee’s way of saying “I have a serious problem, don’t ignore me”. Most of the time, that serious problem is a misfire. This flashing light should not be ignored. When your engine is misfiring, it is dumping raw fuel into the exhaust.

What causes the Check Engine light to flash?

The ignition system is the most common reason that the check engine light will flash. The ignition system consists of spark plugs, plug wires, and the ignition coil packs (older vehicles have a distributer that has the same function as coil packs). These parts work in concert to ignite the fuel in the combustion chamber at just the right time.

What causes a Jeep Grand Cherokee to misfire?

Keeping in mind that any engine needs air, fuel, and spark for ignition, your Jeep Grand Cherokee’s fuel system can often cause the engine to misfire. It can run too lean or rich. Alternatively, there may not be enough fuel for proper combustion, or the fuel isn’t atomizing properly.

Is it a bad sign when the service engine soon light flashes?

Although it’s a bad sign when the service engine soon light flashes, when one of these codes comes up with it (and nothing else), it’s almost always one spark plug or ignition coil. There can be other reasons this code is thrown, you can see more by clicking on the P0301 link above.