When ignition coils need to be replaced?

In order to keep our engine working well and smoothly, it is important for us to know when we should replace the ignition coil. 

The most common symptom of a faulty ignition coil is engine misfiring, which is when one or more cylinders in the engine is not firing properly due to a lack of air, fuel, or in this case, spark. Misfires generally present themselves as a rough idle or lack of power.

In some cases, a faulty ignition coil can even prevent a vehicle from starting.  But, when your vehicle could fail to start, there could be different other reasons, including a dead battery or bad starter.  The technician can tell if your ignition coils are the couse of misfire or other reason after several diagnostic tests. 

Frist, when your engine light turn on, it shows that your engine has a problem,  it may to remind you to replace your ignition coils, or may remind you for other reasons.  The professional mechanic need to check your engine and find out the reason.  Of couse, if you find your vehicle is consuming more fuel than usual, this could also indicate that it’s time to replace your ignition coils. This is because if the spark plugs aren’t receiving enough power due to failing ignition coils, your vehicle will compensate for the decrease in power by increasing its fuel consumption.

Backfiring can also be a sign of an ignition coil problem. A backfire is characterized by a loud banging sound. You may also see black smoke coming out of your exhaust pipe. This is not normal and could indicate that your ignition coils are failing. 

So we have to always pay attention to the signs of a failing ignition coil. With these signs, it would help us to tell when to replace ignition coils.  Make a small mistake could seriously damage the spark plugs or the engine components, so it is better to let the mechanic to handle and check the engine. The mechanic will check the ignition coil's primary and secondary windings  to see if the coils need to be replaced. 

When replace the ignition coil, it is better to replace all coils and better to choose high quality ignition coils. Kavy could offer you the OE quality abd best choice .