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Sunday, April 9, 2017

Diagnose and replace Bad ignition coils only at PartsAvatar

Learn the symptoms of failing ignition coil and Replace the ignition coil yourself.

Ignition coils main purpose is to ignite the spark plugs. It transforms car battery’s low voltage to high voltage. This high voltage is needed to ignite the fuel with the help of spark plugs. Hence, ignition coil sparks the spark plug in order to ignite the fuel. To relay the voltage to spark plugs, ignition coil takes power from the generator.

Ignition coil is very important component of the car’s ignition system. Sometimes there might be a problem with your car’s ignition coil that is halting the car’s running. It is wise to always know the issue and symptoms that indicate bad ignition coil as mechanics may sometimes exaggerate small issues for their benefits.

Before moving further, let us know what exactly the working of ignition coil is. Their job is to convert low current 12 V normally found in batteries, to much higher voltage that is needed to ignite the fuel and start the engine. This job of ignition of fuel is done through spark plugs.

So basically, ignition coils have to produce spark in spark plugs of car for this purpose. These can be connected wirelessly or in wired manner to the spark plugs. Spark plug needs about 20000 volts of electricity to form a spark.
Bad ignition may result in bad fuel consumption or engine misfire.


If the driver experiences trouble in smooth ride, it may be the signal of failed ignition coil. Let us read about some common symptoms of bad ignition coil.


Worn spark plugs are one of the most common causes of an engine misfire. Overtime this problem could worsen and damage other engine components also. It is also unsafe to drive a vehicle with misfired engine. A loud popping and sneezing noise, bad odor especially of gas and coolant, black exhaust and loss of power are some of the symptoms of a misfired engine. Vibrations in the vehicle may also indicate misfired engine. For safe driving and prolong age of your vehicle, you should get the ignition coils checked whenever you encounter engine misfire.


Backfiring is caused by spark plug sparking when it isn’t its turn and the exhaust valve is open. When the unused fuel in the combustion cylinder leaves through exhaust pipes, this causes the engine to backfire. Foul smell of gas and black exhaust are some of the signals of backfiring. Delaying the repair may cause troubles for you as the exhaust system may also get damaged due to backfiring. This may add extra dollars to your repair cost, so get it fixed as soon as possible.


A lot of unused fuel turns to exhaust, during engine misfiring or failed ignition coils. Because of this, vehicle’s mileage will decrease abruptly hence causing low fuel economy. Ignition coil will fail eventually and spark plugs would no longer ignite the fuel. Depleted fuel economy will not only eat more gas but also will charge you a lot of dollars for it. Before your car turns useless metal, get it examined properly by a professional.


Engine fails when the ignition coils fail to ignite the fuel. With ignition coil failure, irregular sparks would be emitted to the plugs to keep the vehicle running. This causes uneven firing of the piston. Your vehicle may stall completely if fuel and air combination fail to get proper ignition.


Sometime there may be problems with starting of the car. Even if you turn the key on, car won’t start. Ignition coils must be checked in this situation because, spark plugs might not be getting enough spark to ignite the fuel.
You may encounter this problem generally in winter season. Inspecting the high tension leads can help in confirming whether the current is being transferred from the leads to every spark plug or not.


When starting the engine if your vehicle coughs or sputters, it means something is wrong with the ignition coil. At high speed, jerks may be felt and vibrations may be observed at idle.


You can easily replace a failing ignition coil yourself. You can also get aftermarket auto ignition coils if needed. So lets have a look at steps to do so.

1. The very first step is to disconnect the battery. You can do so by disconnecting negative battery cable.

2. You can use owner’s manual to locate the ignition coils on the top of the engine.

3.  Disconnect and remove the old ignition coil by disconnecting the screws attaching the coil to the vehicle. You will also have to remove electrical connections with coil. After disconnecting you can remove the coil from the vehicle.

4. Install the new ignition coil. The order of installation will reverse now. You can take owner manual’s help for this order.

5. After installing the new ignition coil, reattach the negative terminal to the car’s battery to resume power supply to the car.

6. You can now test the installation by starting the engine. If the vehicle starts normally, that means job is successful.

Parts avatar suggests replacing the ignition coil in right time to avoid sluggish driving experience and maximum expenses. This guide may help you enough to diagnose the problem and even replacing it yourself other than following weird and expensive repair suggestions by mechanics.

For best deal in aftermarket auto ignition system parts and auto battery parts visit Parts avatar Canada.


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