The failure of the coil and/or the car motor. Faulty wires are the most common causes, however. Electrical damage to ignition coils will most likely result in either overheating the wires or damage to the insulation. This damage can cause the wire insulation to rupture, the insulation to fail, and the wire to fail. A faulty wiring harness is the third possibility.
The wiring harness may have an insulation break, the wire itself may have been damaged by a blow-by, or the wires may have been damaged by a spark plug fire.
A spark plug fire can cause any number of problems that could have lead to the failure of the coil or the car motor. A spark plug fire can also cause ignition wire damage, however, this would most likely only be possible if the spark plug had been running.
This would require that the ignition coil and/or the car motor had been running. When one fails, they are replaced when needed.
The coil goes in or out, at normal interval. The timing is adjusted and the car is driven normally.
When the ignition coil fails, how do you know it, is bad or not working properly? When an ignition coil fails, it should automatically go back in, at normal interval (usually 30 seconds) and will continue to stay in. That is, the ignitions wire should stay alive until the car is started. It’s important to note that the timing will eventually need to be adjusted again if the coil needs to be taken out.
An Ignition Coil with Poor or No Spark Plugs
When the spark plugs get hot, they heat up and they work harder. This causes more electrons to be drawn from the battery and less to be drawn from the engine. These electrons can heat up another ignition coil causing it to fail. It’s important to also note that these spark plugs do not have a long lifespan, even when new. They are also not designed to last very long in a new car. The reason these ignition coil failures happen is due to a number of factors that include the “old school” wiring, the bad ignition coil and the bad battery. (Ignition coils and spark plugs, by the way, have nothing to do with a car’s engine or motor).
For a coil to fail, the spark plugs can do the majority of the work. If they don’t work they are going to
eventually overheat and fail. A good, working spark plug on a bad or underpowered alternator will do the work, however. If the spark plug does not last long enough, the engine will be going more slowly for extended periods of time. If the spark plug does not last long enough, then the vehicle will start to slow down and be unable to go very far. A spark plug that is not working properly, if it’s going to die, is going to start to slow down and not have very much power to work with. (Ignition coil and spark plug problems).
How many ignition coils in a car
Most modern cars frequently have one ignition coil for each spark plug. With a six-cylinder engine, there is a high possibility you have six coils. However, there are some exceptions. Some vehicles have one ignition coil for every two spark plugs.
Some common problems
• Cranking while driving
• Crashes that cause rear end damage
• Damages from hard launches
• Sudden stopping and starting
• Sudden acceleration at low speeds
• Damages from high speed down grades
• Damages from crashes from improper brake line installation
• Damages from hard jumps
• Damages from high speed bumps
• Damage to fuel lines
• Damages from air filter removal and replacement
• Damages from low battery power
• Damages from low battery voltage
This is why it is so important to keep the coils in order for maximum performance. If they fail they have a tendency to overheat and fail, potentially damaging your engine. Coils can be changed when the car has been driven less than 200 miles. Do not change coils when the car has been
in service for more than a year as your engine can become damaged by the change.
The coils cannot be changed without a new car. If you change the coils yourself you will need to go to your local dealership and find out what types of coil they are. Most are NiCd (nickel chloride dihydrogen) but some use steel. The first coils to be used should come from the original car, not a modified one.
When changing the coils it is important it be done in a well ventilated area. Be sure it is done properly and with good maintenance. Be sure that the engine has a decent level of heat on it.
How to keep your car’s coils in order
Inspect the original coils for damage. If the car has been run for a while, it is probably too old for the coils to be at optimal levels, unless you have done a complete coil overhaul which costs a small fortune (the coils have to be completely removed to do this). Clean them well to remove dirt, dust and crud.
The cleaning process will remove many foreign objects that may also cause other problems as well or damage the coils. It is often best to clean the coils by hand due to the complexity of the coils themselves as well as how they are put together.
Take care not to damage the inside wall of the coil by putting excessive pressure on the coil during the cleaning process. Some owners have reported that when cleaning the coils they put too much pressure and have damaged these, but if it is necessary, keep an eye on the car and make sure the car does not start if you see the coils become very hot.
The heat can be extremely detrimental to the coils. Don’t use bleach at any point, just do a thorough
cleaning with some rubbing alcohol and water. It has also been found that if you are using a small engine (under 750 cc) it is possible to damage the coil on some cars.
The coil should remain on the car, but try to work the coils slowly in and out like you are putting in a tire. This helps loosen any damaged coils, but also may damage the rest of the engine to a certain degree.
Changing Car Ignition Coil pack
If you are not sure about what the original manufacturer has recommended for changes, always speak to your local dealer and get their opinion before making anything big changes.
A car with a failing ignition coil should have the car towed/dropped to the local dealer for inspection and if necessary repairs to prevent an explosion. This is why it’s important to have good insurance and a car repair shop that knows what they are doing or will tell you so you can get the job done right.
You must also have a good friend with a car service program that covers coil replacement, since you will probably only get a small percentage of your payback from an aftermarket coil company.
Most people don’t know this, but a good coil can have a big effect on your engine’s power output. If the coils are bad or if the car is under a lot of stress during hard driving, the engine will run rough. If you keep your original coil, then when the car is in a heavy load situation, the car runs smoother and can save you more than $4000 in repairs for a coil failure.
Don’t risk your engine by changing a coil unless you are absolutely certain the replacement is the absolute perfect replica that the factory supplied one is. Check your car’s owner’s manual that is provided and be sure to have the car run very hard with no brake and suspension load to check for excessive compression in the coils. The car has to be turned off so it doesn’t overheat the coils and blow them all out.
Do not let the car sit for more than a day before you take the car to the dealers and check it out to make sure the ignition coils are all there.
A bad Ignition Coil may cause the car to run rough, may need more fueling during a drag strip, etc. If you have a bad Ignition Coil, do not take it out of the car until you fix it, in most cases a new coil would fix your problem.
The Coil is usually covered under the warranty with an on-site inspection and/or a visit to your service shop. If it doesn’t fit or is not functional, you should report it to the car manufacturer. Note: A coil that failed due to an intake blow-by and/or a blown cam lobe will often get replaced instead of a new
coil. This is called a Blow-By Replacement (BTR).
Some cars are equipped (through different ways) with alternator controllers, which allow the engine management to limit the amount of air/fuel that gets to the engine (this is called alternator “soft start” protection). If you have a bad alternator controller it could make it harder to get a bad coil to fail (like if you didn’t have a coolant flush), so make sure to ask your service technician.
If you have a bad alternator controller, do not take it out of the car until you fix it, in most cases a new controller will fix your problem.
If it’s a CEL, check the CEL, or if the CEL stops CELing your car, have it serviced. Some people have suggested that swapping the coil, or swapping to some sort of stronger and/or higher amperage
coil will help. I am not too knowledgeable on coil design, but generally speaking I am against trying to increase the coil diameter. Just because you can have a big bang of boost, doesn’t mean it’s best.
I’m sure there are people that swear that they can get more bang of boost from a bigger coil, but I can tell you, it doesn’t give you enough boost to be noticeable, as with a smaller coil, you are generally just getting more of the power that your engine is already producing. At the end of the day you are just getting more of your old, old, boost.
It usually just means the coil is old. If it’s a blown cam lobe, you will want to replace it. Many people suggest replacing the cam lobe with a set of cam cover gaskets (these are usually about $14-20 at the moment). But if it’s a bad cam lobe, get a new cam lobe.
Ignition Coil failure was probably also caused by some other failure of the power wiring system. For more information on why the power wiring failed, and what has been done, check out this page: Why has the engine started to stall? It seems like a simple question, but people get many contradictory answers, some claim it’s due to cold temps and/or a blown head gasket, and others
claim it’s due to a failed ignition coil.
Some people claim this problem is more common in earlier model cars, while some people claim a bad coil is the actual culprit. For any failure due to a bad ignition coil, I think this is one of the biggest issues one will run into. You can make gains from swapping out coils but there are also costs, as a result there is many debate over this. I personally see a lot of people with flat ignitions that have
the coil swap, so lets not forget that.This is what may be causing the coils to fail.
Some ignition coil failures could be caused by either. But to make sure, I’m going to go into more detail. Some people may think this is a bad idea, as it will void the warranty on the coil, and/or you will need to pay for new coils. But most people, including myself, do it anyway.