Jeep Commander Bad Ignition Coils: Causes and Solutions

ByChalobah Leonard Jeep

The Jeep Commander is a mid-size SUV manufactured by Jeep from 2006 to 2010. It is one of the most popular SUVs in the market. One common problem owners of the Jeep Commander have experienced bad ignition coils, which can cause many problems.

If you’re also facing the same problems, you should know about Jeep Commander bad ignition coils: causes and solutions.

Bad ignition coils can cause various issues in a Jeep Commander, including engine misfires, decreased fuel efficiency, and poor acceleration. To solve these issues, replacing the faulty coils is the most effective solution.

If you still don’t figure out what to do, stay with the content by reading the entire content. Here you’ll find a comprehensive guide regarding that.

Overview of Ignition Coil in Jeep Commander

The ignition coil in the Jeep Commander is an important part of the vehicle’s electrical system. It is responsible for providing the spark to the spark plugs, which ignites the fuel and air mixture in the combustion chamber and provides power to the engine.

Without a functioning ignition coil, the engine would be unable to run. The ignition coil in the Jeep Commander is located in the engine bay and is connected to the battery, the alternator, and the spark plugs. It is a cylindrical device with two positive and negative wires.

When the starter is activated, the current from the battery flows through the positive wire, through the coil, and then out the negative wire, creating an electric spark. This spark is then directed to the spark plugs, which produce the combustion needed to power the engine.

Types Of Ignition Coils

There are many types of ignition coils available for various vehicles. You should know them to identify the type of coil used in your Jeep Commander. Here are some types of ignition coils:

  1. Canister Ignition Coil
  2. Coil-on-Plug (COP) Ignition Coil
  3. Coil-Near-Plug (CNP) Ignition Coil
  4. Coil-Per-Cylinder (CPC) Ignition Coil
  5. Powertrain Control Module (PCM) Coil

Impact of Bad Ignition Coils on Car’s Performance

Bad ignition coils can have a huge impact on the performance of the Commander. Ignition coils provide the spark necessary to ignite the fuel in the engine. If the ignition coil is bad, it may not be able to produce enough spark to ignite the fuel, resulting in an engine misfire, reduced engine power, and poor fuel economy. This can lead to increased emissions and wear and tear on the engine.

How to Test an Ignition Coil?

Testing an ignition coil is a simple process. Following are the steps for testing an ignition coil:

  1. Ensure the coil is receiving the correct voltage. Disconnect the positive terminal of the ignition coil and use a digital multimeter to measure the voltage at the coil’s positive terminal. The voltage should read 12 volts or more.
  2. Check the coil’s secondary winding by connecting one end of an ohmmeter to the positive terminal and the other end to the negative terminal. The resistance should read between 3,000 and 10,000 ohms.
  3. Test the spark plug wire by attaching one end of an ohmmeter to the spark plug wire and the other to the negative terminal of the coil. The resistance should read between 10,000 and 20,000 ohms.
  4. Test the coil for spark by connecting a spark plug to the spark plug wire and the other end to the coil’s negative terminal. Place the spark plug against a metal surface. Turn on the ignition and look for a spark from the spark plug. The coil or the spark plug wire is faulty if there is no spark.

Symptoms of Bad Ignition Coils In Jeep Commander

Every problem gives hints before starting. Bad ignition coils in Jeep Commander also give you some symptoms before the ultimate problem. Here are the symptoms it shows-

  • Difficulty in Starting the Engine
  • Poor Fuel Efficiency
  • Misfiring or Backfiring
  • Check Engine Light is Illuminated
  • Unusual Exhaust Smoke
  • Spark Plug Fouling
  • Vibration or Shaking

Causes Of Bad Ignition Coils In Jeep Commander

The Jeep Commander is a reliable vehicle. However, users found a bad ignition coil problem while using it. This problem creates other problems for Jeep Commander users. Here are some of them:

  • Bad Spark Plugs: Bad spark plugs commonly cause bad ignition coils in Jeep Commander. It should be changed regularly unless it becomes worn and creates misfiring in the engine.
  • Faulty Wiring: Wrong wiring also causes bad ignition coils in Jeep Commander. If the wiring is not properly connected, it can cause the ignition coils to fail.
  • Corrosion: Corrosion can cause bad ignition coils in Jeep Commander. It can build up on the coils and cause them to fail.
  • Overheating: Overheating can cause bad ignition coils in Jeep Commander as well. If the engine runs too hot, it can cause the ignition coils to overheat and fail.
  • Worn Out Parts: Worn out parts in the ignition system can also cause bad ignition coils in Jeep Commander.

Solutions to Bad Ignition Coils In Jeep Commander

Jeep Commander’s one of the most reported problems is a bad ignition coil. It causes engine misfires, power loss, and even failure to start. Fortunately, there are various solutions available to help solve this problem.

  1. Replacing the Spark Plugs: The first and easiest solution is to replace the spark plugs. This can help to restore the spark needed to ignite the fuel in the cylinders.
  2. Inspecting the Ignition Coils: Inspect your ignition coils regularly, which can reveal whether they are damaged or worn. If so, replacing them should solve it.
  3. Checking the Wiring: Any faulty wiring should be replaced to ensure proper power is delivered to the ignition coils.
  4. Cleaning the Fuel Injectors: Dirty or clogged fuel injectors can also prevent the engine from starting. Cleaning or replacing the fuel injectors can help to solve this issue.
  5. Replacing The Fuel Filter: A clogged fuel filter can also restrict fuel flow, preventing the engine from starting. Replacing the fuel filter can help to restore the flow of fuel.

Significance of OEM Replacement Parts for Ignition Coils

OEM (original equipment manufacturer) replacement parts for ignition coils for Jeep Commander are critical for maintaining your vehicle’s quality and performance. These parts are designed to work with the engine to provide a reliable spark to the spark plugs, which helps ensure optimal engine performance. OEM parts are also designed to provide compatibility with other components in the engine and ensure that all parts work together harmoniously.

Common Issues with Ignition Coil Replacement

Common issues with ignition coil replacement include incorrect installation, insufficient voltage, and faulty connections. Poor installation can cause voltage leakage, arcing, and premature failure, while insufficient voltage can cause misfiring, stalling, and hard starting. Faulty connections can cause the same issues and poor fuel economy. In that case, it will be to take the help of a professional car mechanic when deciding to replace the bad ignition coils in your Jeep Commander.

Final Words

We hope this guide will help you to locate and solve your Jeep Commander’s bad ignition coils: causes and solutions. The Jeep Commander has had its fair share of problems with its ignition coils. Poor maintenance, bad design, and other factors can all contribute to the coils failing prematurely.

To fix this issue, you have to inspect the coils and spark plugs for any signs of damage or wear and replace the faulty coils. With these steps, the ignition coils in the Jeep Commander can be kept in good working condition and help to prevent future issues.