Mazda Mpv Ignition Coil
Various Signs of a Failing Mazda MPV Ignition Coil
Right at the heart of the engine lies one of the most crucial components, the ignition coil. The ignition coil is very important because without it, the engine cannot produce the energy needed to instigate the firing of the spark plugs. Unfortunately, this part fails from time to time and when it does, the signs are telling. However, ignoring these signs will result to a range of problems in the vehicle not exclusive to the ignition system only.
Lower fuel economy
Probably the most pressing symptoms that a failed ignition coil could communicate is a decline in your fuel economy and gas mileage. This happens because the defective ignition coil is not able to give enough power to the spark plugs to burn off the fuel anymore. This phenomenon results to less power and more stepping on the gas pedal. Consequently, the engine becomes unable to provide the power you need and the fuel economy and gas mileage inevitably suffers.
You may notice that there will be a connection with all the symptoms mentioned here. For example, since the mixture of the air/fuel ratio is rich (more fuel content mixed), there will be an increase of byproducts that will travel from the combustion chamber to the exhaust. In turn, the exhaust may not be able to handle and process all the chemicals passing through. Unprocessed chemicals are extremely harmful to you and the environment.
Perhaps the earliest symptom of a failing ignition coil you can notice is backfiring. This happens when unused fuel is emitted through the car's exhaust. Since the unused fuel has enough juice to still combust given the right conditions, it creates a small explosion. Backfires can occur either in the car's manifold or in the exhaust pipe. More times than not, backfiring usually takes place in the latter. These backfires must be corrected immediately before it causes serious damage to your exhaust system.
Because the ignition coil cannot give the means for the spark plug to ignite the combustion, cars that are suffering from this problem have a harder time to start. This will further be highlighted when the car is cold or when the humidity level is high. In extreme cases, a car whose ignition coil has already failed completely will not start at all. Even jump-starting will be futile.
When your car starts to run rough, stuttering, hesitating, jerking, and stalling, that's your spark plug misfiring. One of the reasons of spark plug misfire is a broken ignition coil. Furthermore, there's an increase in engine vibration while the car is idling, like it's ready to die any second.