A better understanding of common problems associated with the parts of your car called ignition coils will help you keep your car running without hiccups. These coils are very important in that they take the low voltage from your battery and convert it into the high voltage needed to fire the air-fuel mixture inside your engine.
An ignition coil problem may cause misfires and rough idling, aside from damaging other parts of your vehicle. We at Phoenix Auto Repair are here to help in diagnosing and effectively fixing these problems. As your go-to partner for professional auto repair, we ensure your vehicle is at its best without any extra fuss.
What is an Ignition Coil?
Believe it or not, the ignition coil is one of the most important parts of your car engine. A wire coiled into this piece serves the essential purpose of converting 12-volts coming from the battery into a high voltage, sometimes even up to 40,000 volts! It takes that much voltage to power the spark plugs, creating the ignitions for the air-fuel mixture inside the combustion chamber. Without it, a car would not start properly.
There are different types of ignition systems, but the ‘coil on plug’ is a very modern kind of system that is gaining popularity these days. In such a design, each spark plug has its ignition coil mounted on the top. It reduces the loss of energy to a minimum, resulting in good performance and improved reliability. Your car’s engine type might make them set differently, but in most cases, they are set at the top in a four-cylinder engine and in rows for bigger engines.
Ignition Coil Problem: Signs Not to Be Overlooked
Various signs indicate a problem with the ignition coil, all of which have a major impact on your driving and the condition of your car. Finding them out in good time could help you avoid bigger problems down the line.
Activation of the Check Engine Light
If an ignition coil starts deteriorating, one of the very first things you may notice is that the check engine light turns on. This is a direct alert from your vehicle’s engine control module, perceiving a misfire since the coil is not able to send enough voltage across the spark plug.
Rough Engine Idle
A faulty ignition coil causes rough idling. You may even feel your car vibrate while it is in a stationary position. This lack of smooth operation is due to incomplete combustion cycles from the missing sparks, which can lead to discomfort and potential safety concerns.
Poor Performance of Vehicle
Ignition coils that are not at their best have poor performance. In multi-cylinder engines, each of the spark plugs needs to fire right for power to be generated the right way. Even with just one misfiring cylinder among four, efficiency will be reduced by as much as 25%, making acceleration poor and the general performance mediocre.
Fuel Smell
Most of the time, incomplete combustion results in fuel finding its way through the exhaust system, often giving a characteristic smell from the gas that is hard to ignore. It is both simply annoying and a risk for long-term damage to crucial parts like the catalytic converter. Excess fuel can lead to overheating and degrading over time if not promptly addressed.
These signs and symptoms will help you know what could be the problem with your car’s ignition system ahead of time. Finding these issues early and dealing with them will save you from overly expensive repairs that may also keep your car off the road.
How to Diagnose Problems in Ignition Coils Like a Pro
The first important thing every car owner should do when dealing with problems regarding ignition coils is to perform a proper visual inspection. This could be facilitated by looking out for signs such as corrosion or even cracks on the ignition coils and their connectors, which could help them locate any potential failures before they become bigger problems.
Visual Inspection Tips
- Check connectors for any visible corrosion that may hinder good functionality.
- Inspect every part of the ignition coil for any signs of cracking, which may suggest breakage or wear and tear.
Well, it is time now to actually get a bit dirty and look at some practical testing. For a problem such as a misfire, swapping the ignition coil with one from another cylinder would be a good place to start. It helps in telling you if the coil itself is bad.
Step-by-Step How to Test an Ignition Coil
- If you can, use an OBD2 scanner to diagnose which cylinder is misfiring correctly. For example, in P0302, 2 is the cylinder that’s misfiring.
- Swap the suspect ignition coil with one from another cylinder.
- Start the engine and see if the misfire follows the swapped coil.
- If it does, replace that bad ignition coil.
- If swapping doesn’t fix the problem, check and replace the spark plug in that cylinder.
These steps will allow you to effectively narrow down ignition coil problems and make sure each part functions as it is supposed to. If you can follow this step, then you are off to a professional diagnosis.
When to Seek Professional Help?
While it’s rewarding to diagnose and replace ignition coil problems yourself, there are instances where you must let professionals handle the job. Here are some signs that you need professional car repair services like Phoenix Auto Repair:
Persistent Misfires
If the problem of misfires cannot be resolved by either switching coils or replacing the spark plugs, then this may indeed be a more involved problem. This could entail detailed engine diagnostics or sophisticated equipment that professionals can provide.
Repeated Check Engine Lights
A constant or recurring check engine light, even after attempted fixes, suggests underlying issues that call for further investigation by an experienced mechanic.
Unusual Smells or Sounds
A smell of gas from the exhaust or unusual noises during operation signals potential damage beyond ignition coils and could affect the catalytic converter or other components.
With professional auto repair services, you are assured of comprehensive checks on your car. Among the benefits accrued to you are:
Professional Diagnosis: Skilled technicians with years of experience use special tools and knowledge to accurately diagnose problems, saving you time and frustration from probable misdiagnosis.
Quality Repairs: Professionals, like us here at Phoenix Auto Repair, get the job done right the first time with quality parts and methods that help extend the life of your vehicle. You can put your trust in us to get your car on the road quickly and safely.
Choose Phoenix Auto Repair
Keeping your vehicle in top operation involves being vigilant about the possible emergence of ignition coil problems. Everything from rough idling to that check engine light just won’t quit until you have fixed the problem.
We here at Phoenix Auto Repair Nashville can help you through every step of diagnosing and repairing your ignition coil so your car can perform the best it can. Need help? Give us a call at (615) 866-9199 today for added peace of mind with professional care.
