There are various symptoms of bad spark plug wires. Bad spark plug prevents engine to start. If you suspect that you may have a faulty spark plug wire, it is important to recognize the potential symptoms so that you can diagnose and address the issue as quickly as possible.
A rough, irregular, or erratic idle can be a sign of a bad spark plug wire. This may be particularly noticeable when sitting at a stop light and can cause the vehicle to feel as if it has a slight shimmy. This type of idle can be caused by an imbalance between the cylinders.
If you notice a misfire on at least one cylinder, particularly under heavy throttle demand, this could be a symptom of a faulty spark plug wire. A misfiring engine may also produce an audible loping noise when under load.
In some cases, a bad spark plug wire can cause an engine to backfire as a result of incomplete or inefficient combustion. This backfiring is often accompanied by hesitation or a loss of power when the engine is under a load.
If a misfire caused by a faulty spark plug wire is recognized by the vehicle’s engine control module, a corresponding misfire code may be logged and the check engine light may be illuminated.
It is important to address any issues with your spark plug wire as soon as possible to ensure that your vehicle is operating at its best.
I hope you enjoyed this article.
If you have any question, please comment below.
Thanks For Reading!
Happy Learning!