Symptoms of a Faulty or Faulty Ignition Coil
Common symptoms include the check engine light coming on, engine misfiring, rough idle, power loss, and vehicle not starting.
Ignition coils are an electronic engine control component that is part of a vehicle's ignition system. The ignition coil works like an induction coil that converts the car's 12 volts into the several thousand needed to jump the spark gap and ignite the engine's air/fuel mixture. Some ignition systems use a single coil to spark all cylinders, however most newer designs use a separate coil for each cylinder.
Since the ignition coil is the component responsible for generating the spark in the engine, any problems with it can quickly lead to engine performance problems. Usually, a faulty ignition coil causes several symptoms that alert the driver to a potential problem.
1. Misfiring, rough idle and loss of power.
One of the most common symptoms associated with a bad ignition coil is engine running problems. Since ignition coils are one of the most important components of an ignition system, a problem can lead to spark failure, which can quickly lead to performance issues. Bad coils can cause misfiring, rough idle, loss of power and acceleration, and poor gas mileage. In some cases, performance issues can even cause the vehicle to stall.
2. Check Engine light comes on.
Another sign of a potential problem with a car's ignition coils is a glowing Check Engine light. Bad coils can lead to engine performance problems, such as misfiring, which will shut down the computer and turn on the Check Engine lights. The Check Engine light will also turn off if the computer detects a problem with the ignition coil signal or circuit, such as when the coil burns out or shorts out. The check engine light coming on can be caused by a number of problems, so having a computer (scan for trouble codes) [https://www.AvtoTachki.com/services/check-engine-light-is-on-inspection] is highly recommended.
3. Car won't start
A faulty ignition coil can also result in an inability to start. For vehicles that use one ignition coil as the spark source for all cylinders, a faulty coil will affect the operation of the entire engine. If the coil fails completely, it will leave the engine without a spark, resulting in a no-spark and start-up condition.
Problems with ignition coils are usually easy to spot as they cause symptoms that will be highly noticeable to the driver. If you suspect that your vehicle has a problem with the ignition coils, have a professional AvtoTachki technician check the vehicle to determine if any coils need to be replaced.
