What Are The Signs Of Ignition Coil Failure?

　　The purpose of the ignition coil is to convert the low current from the car battery into enough energy to ignite the fuel and start the engine. When there is a problem with the ignition coil, it will cause a series of mechanical and performance problems. The following signs will warn you of a problem with the ignition coil of your vehicle, and get professional help from your Los Angeles Lafayette Cadillac dealer.

　　Power failure

　　This is one of the first symptoms of ignition coil failure. If the ignition coil fails, your vehicle will feel sluggish and lose power. This is caused by irregular sparks to achieve the desired combustion. When you encounter a power failure, please send your vehicle for repair to avoid further damage, which will cost you more repair costs.

　　Check that the engine light is on

　　If your vehicle catches fire or is difficult to start, the check engine light will come on. This problem is usually caused by a malfunctioning ignition coil. The best reason for action is to contact your Cadillac technician for engine diagnosis as soon as possible before the problem leads to an expensive repair.

　　Poor fuel economy

　　If you travel the same distance but often go to the gas station, it means that the ignition coil is malfunctioning. When the ignition coil fails, the wrong 02 sensor reading will send more gas than needed. You will refuel more frequently because the spark plugs are not getting enough power. To compensate, the system will inject more fuel.

　　Backfire

　　When your vehicle starts to backfire, a faulty ignition coil may be the culprit. When the unused fuel in the combustion cylinder explodes, the vehicle will make a huge explosion sound, causing black smoke and a strong gas odor from the exhaust pipe. If the problem is not dealt with immediately, it will cause damage to the system.

　　Engine misfire

　　A faulty ignition coil can cause your vehicle to catch fire when accelerating. In extreme cases, a fire may cause your vehicle to stall while you are driving. Misfire is the result of incorrect or no ignition at all in one of the cylinders. Emissions may damage the catalytic converter and other engine components.

　　Hard start and stagnation

　　The ignition device needs to ignite at the right time for the engine to start and the vehicle to run. If the ignition coil fails and does not provide the required voltage to the spark plug, you may find it difficult to start the engine. If your vehicle turns off when you park or even shut down completely, the ignition coil may be damaged, sending irregular sparks to the spark plug.

　　Splashing and coughing

　　If you hear splashing and coughing when starting the engine, the ignition coil is causing the problem. The sound comes from a cylinder that does not fire at all during the ignition process.

　　Jerks and vibrations

　　Another problem caused by a malfunctioning ignition coil is vibration when the vehicle is idling. When you step on the accelerator to increase speed, you will also feel your vehicle hesitate and yank forward.