When the ignition key is turned to the "start" position, the battery sends electrical power to the ignition coil. The coil converts this low-voltage current into a high-voltage current, which is then sent to the spark plugs. If the coil is defective, it will not be able to produce a high-voltage current, and the spark plugs will not be able to ignite the air/fuel mixture in the cylinders. As a result, the engine will not start.
In addition to preventing the engine from starting, a bad coil can also cause the engine to run erratically. This is because the coil is responsible for distributing the high-voltage current to the spark plugs. If the coil is defective, it may not be able to distribute the current evenly, which can cause the engine to misfire. Misfiring can cause the engine to run rough, hesitate, or stall.
There are a few symptoms that can indicate that a coil is bad. These symptoms include:
* Engine will not start
* Engine runs erratically
* Engine misfires
* Engine hesitates
* Engine stalls
If you are experiencing any of these symptoms, it is important to have your car checked by a qualified mechanic. A bad coil can cause serious damage to your engine if it is not repaired.
