If you notice a misfire, a rough idle, a loss of power and acceleration, or a reduction in gas mileage, your Jeep 4.0 engine may have symptoms of a bad ignition coil.
The biggest aspect of the ignition system is the ignition coil. A malfunctioning coil, on the other hand, maybe a nightmare for you and your vehicle.
In this post, Cars care faq will go through the symptoms of a bad ignition coil on your Jeep 4.0.
Signs of a bad ignition coil: If your ignition coil malfunctions, your engine will not start. Worse still, it may stall. Learning how to identify the symptoms of a bad ignition coil is also critical.
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What Are the Signs of a Jeep 4.0 Bad Ignition Coil?
These are all the signs of a faulty ignition coil. Although the battery powers the ignition coil, a faulty battery might also cause these symptoms.
However, if these symptoms begin to appear, you can be certain that the issue is with your ignition system. Let’s take a closer look at how to discover a faulty ignition coil in a Jeep 4.0:
- Engine Misfire:
The engine may misfire if your ignition coil is not functioning correctly.
A misfire, which can be heard or felt as a shock or severe vibration, signals that one of the engine’s cylinders isn’t firing properly.
A misfiring engine generates jerking or sputtering when traveling at average speeds. Even when you come to a complete stop, you will feel a strong tremor and shaking.
A malfunctioning ignition coil might also cause the vehicle to stall due to the erratic sparks created by the spark plug caused by the damaged coil.
- Difficulty Starting:
If you have any defective ignition coils, you may have poor ignition and difficulty starting your engine.
A hard start can occur when a spark plug does not get the necessary voltage to generate a spark.
This might suggest that the ignition coil is malfunctioning.
While this can happen with any coil design, it is more common in single-ignition coil engines.
- Reduced Mileage:
If your vehicle gets less mileage from a full tank than usual, you may have a malfunctioning ignition coil.
When your spark plugs do not receive enough power, the system will attempt to compensate by burning more fuel.
As a result, fuel leaks might indicate a faulty ignition coil.
- Check Engine Light:
The engine light is intended to alert you when there is a problem with the engine. The light will come on if you are driving a car with engine troubles.
Never disregard the engine light indicator. However, it is not solely due to a faulty ignition coil; there might be other issues with the engine as well.
- The engine fails to produce power:
If you observe that nothing happens after pressing the gas pedal, a malfunctioning ignition coil might be to blame.
Ignition coils are necessary factors in the combustion process of your engine. And if combustion is not taking place, the engine will not produce enough power to power your car.
- Backfires:
Backfires can be caused by a number of sources, the most common of which is a defective ignition coil.
however, Backfires may cause catastrophic engine damage if not dealt with promptly.
What Should You Do If You Detect A Bad Ignition Coil On Jeep 4.0?
If you are not a professional in car repair, as most of us are not, you can seek the assistance of a professional.
You can easily fix your ignition coil by taking your car to a repair shop. However, if you want to fix it yourself, the procedure is not too difficult.
To begin, when the engine has cooled, unplug the negative battery cable. Then, find the old ignition coil and unplug the plastic electrical connector. Unscrew the bolts after that.
You must now remove the coils from the engine. To test the coils, use a multimeter to measure the resistance of each coil. If the resistance is unusually high or low, your coil may have failed.
If you have the correct replacement coils for your car, you may install them right away by using dielectric grease. Apply the grease to the inside of the ignition coil insulator boot and replace the spark plug.
Connect the electrical connections and rejoin the negative battery cable after installing the ignition coil bolts. You may now test drive the vehicle to ensure that the ignition coil is working properly. You’ve done it if everything works! If not, the issue might be elsewhere.
Is Replacing A Bad Ignition Coil On A Jeep 4.0 Typically Expensive?
You may obtain a replacement ignition coil from online retailers. The price may differ based on the model.
The cost of an ignition coil is determined by your car. A low-end coil may cost you roughly $75. However, high-end coils are expensive, and you may have to pay up to $300 or more.
There is also the issue of labor costs. If you elect to replace it from a repair shop, the labor cost is normally around $150.
How Frequently Should You Check Your Jeep 4.0 Ignition Coil?
The inspection duration ranges between 30 minutes and an hour, depending on the coil and its current status. To examine the coil, you do not need to be an expert.
It is suggested that you examine your car at least twice a year to see if there are any issues with the ignition coil.
An ignition coil has a lifespan of around 100,000 miles. As a result, you must be mindful of the entire distance traveled by your car. It all depends on how rough you drive.
There is also a time constraint to consider, as the manufacturer only warrants the car for three to five years. The maximum lifespan of your ignition coil should be five years. As a result, it should be serviced every four to five years.
Last Thoughts
The ignition system of a car must employ an ignition coil to assist increase the signal to the spark plugs. So everything should be in order for you to start your engine. The ignition coil must be of high quality in order to give electricity to the battery.
It is entirely up to you how you want to keep your vehicle’s ignition coil working properly. You should take appropriate care of it so that it does not fail, and you should also replace or repair the ignition coil as needed.
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