If your car is behaving erratically and you have issues with it running smoothly, it could be showing signs of ignition coil failure. The ignition coil takes power from the generator and relays same to the spark plugs. This ignites the fuel and makes your car run. The severity of the symptoms differ according to which of the ignition coils are failing.
READ ALSO:HOW TO TEST IGNITION COIL IN A CAR
If your car is backfiring, this can show early symptoms of an ignition coil failure. This happens when unused fuel is emitted through the exhaust system. If you do not fix the issue, you can also do serious damage to your exhaust, resulting in unnecessary and costly repairs. Your exhaust may emit a black smoke and you may even detect the smell of gasoline.
Inspect your high tension leads (HT Leads). They run between the distributor and spark plugs. Ignition coil failures leads to 1 or more spark plugs not receiving the appropriate amount of charge. If you have trouble starting your car in the cold, this is a good symptom of potential ignition coil failure. You can run a simple test on the HT leads to check that there is in fact a spark going from each lead to each spark plug.
If your car is getting a lot less mileage for the gallon, it could also be a sign of an ignition coil failure. When less power is reaching the spark plugs, your car will struggle and use more fuel to compensate for the lack of power transfer.
Trying to start your car when the ignition coils fail will result in a rough ride. Your car will cough and splutter regularly. When you drive at high speeds, your car will jerk and spit. It will also vibrate when you are running idle at a stop sign or intersection.
With ignition coil failure, your car will have irregular sparks emitting to the plugs to keep it running. This will result in stalling. When you bring your car to a stop, it may just shut off totally, thus leaving you requiring to restart it.
If your spark plug are worn out, it forces the ignition coils to function at a much higher output. Keeping your sparks plug in optimum condition can lower your chances of experiencing an ignition coil failure. Some simple regular maintenance will save you a lot of money in the long run.
If the gap in your spark plug widens because of normal erosion, it results in an increased voltage being needed to create a spark in the chamber. The increased voltage demands more current flow through the primary circuit and this increased current flow can overload the primary transistor. Keeping all these components in good running condition is also a big help towards keeping your coils in a good working condition.