What Can I Use To Clean Ignition Coils?

Last Updated on October 6, 2023 by Matthew Lloyd

You have two effective methods to clean ignition coils: an air intake cleaner or a copper wire brush with an electronic cleaner. Both methods help remove dirt and debris that can hinder the flow of electricity and affect engine performance. When using an air intake cleaner, you disconnect the ignition coil, spray the cleaner, and gently brush away debris. With the copper wire brush method, you remove the ignition coils, https://carorbis.com/blog/how-to-replace-ignition-coils/clean them with the brush and electronic cleaner, and apply Di-Electric grease for protection. Regularly cleaning ignition coils improves performance and fuel efficiency and prevents premature failure.

Method 1: Clean the Ignition Coil Using Air Intake Cleaner

Step 1: Prepare the Tools

Before you start cleaning the ignition coil, gather the following tools:

• Air intake cleaner
• Thin towel or cloth
• Toothbrush (small-sized)

Step 2:Disconnect and Remove the Ignition Coil

Disconnect the Negative Battery Cable

1. Prioritize safety by disconnecting the negative (black) battery cable from the terminal. This will prevent any accidental electrical contact during the cleaning process.

Remove the Ignition Coil Wires

1. It’s essential to remove the ignition coil wires carefully. This step allows for easier access to the ignition coil.
2. Take the time to label each wire or capture reference pictures, ensuring proper reassembly later.

Locate and Remove the Ignition Coil Packs

1. Find the ignition coil packs in your vehicle. Remove the bolts securing the coil packs using a socket wrench with a 5.5 mm socket. You only need to remove three plugs if you have a 60-degree V6 engine.
2. Take note of the position of each coil pack for reinstallation.

Disconnect the Connector Plugs

1. With the coil packs accessible, use a 7 mm socket to disconnect the connector plugs from the module.
2. Carefully detach each plug, ensuring you don’t damage the connectors or wiring.

Step 3:Clean the Ignition Coil Using Air Intake Cleaner

After removing the ignition coil, it’s time to clean it using an air intake cleaner. Follow these detailed steps:

Spray Air Intake Cleaner

1. Spray air intake cleaner inside the ignition coil, focusing on the tabs and wires where they connect.
2. Ensure thorough coverage of the areas with cleaner, as it will help remove dirt and debris.

Gently Remove Debris

1. Take a small toothbrush and use it to gently remove any debris present on the tabs and wires of the ignition coil.
2. Be careful not to apply excessive force to prevent damage.

Wipe the Area

1. Use a thin towel or cloth to wipe the area around the ignition coil, ensuring no debris falls into the spark plug opening.
2. Wiping the area helps maintain cleanliness and prevents contaminants from entering the engine.

Step 4: Reassemble the Ignition Coil

Now that the ignition coil is clean let’s proceed with the reassembly process:

Slide the Boot Back

1. Slide the boot back onto the ignition coil carefully, ensuring it fits securely.
2. The boot helps protect the coil and maintain proper electrical connections.

Place the Coil Pack

1. Position the coil pack back in its original position within the engine compartment.
2. Take note of the correct placement to ensure proper alignment.

Reconnect Wire Connectors

1. Reconnect the wire connectors to their respective locations on the ignition coil.
2. Use the appropriate socket to tighten the connectors securely, ensuring a stable connection.

Apply Di-Electric Grease

1. Apply Di-Electric grease to the boot plugs, connectors, and the top and bottom of the ignition coils.
2. The grease is a protective barrier, preventing moisture and improving electrical conductivity.

Reconnect the Negative Battery Cable

1. Finally, reconnect the negative battery cable to its terminal.
2. Ensure a secure connection, but be cautious not to over-tighten.

Method 2: Clean the Ignition Coil Using a Copper Wire Brush and Spray Electronic Cleaner

Step 1: Gather the Tools

For this method, you will need the following tools:

• New ignition coil wires
• Socket wrench with 5.5 mm and 7 mm sockets
• Di-Electric grease
• Soft copper wire brush
• Spray electronic cleaner

Step 2: Remove the Ignition Coils

1. Disconnect the negative battery cable to ensure safety.
2. Label or take pictures of the ignition coil wires for easy reinstallation.
3. Use a socket wrench with a 5.5 mm socket to remove the ignition coil packs.
4. Use a 7 mm socket to disconnect the connector plugs from the module.

Step 3: Clean the Ignition Coils

Let’s clean the ignition coils using the following steps:

1. Spray electronic cleaner on the tabs and wires where the ignition coils connect.
2. Use a soft copper wire brush to remove debris from the tabs and wires.
3. Clean the connectors and wire origins on the module with an electronic spray.
4. Ensure everything is dry and apply Di-Electric grease to the boot plugs, connectors, and top and bottom of the ignition coils.

Step 4: Reinstall the Ignition Coils

1. Place the module back on the car.
2. Reinstall the ignition coils in the same order they were removed, reconnecting the connectors and wires.
3. Remove any excess Di-Electric grease.

Why is it Important to Clean an Ignition Coil?

Cleaning the ignition coil is crucial for several reasons:

• Removes built-up dirt and debris that hinder the flow of electricity.
• Improves the ignition system’s performance and efficiency.
• Enhances engine power and fuel economy.
• Prevents premature failure and costly repairs.
• Increases the longevity of the ignition coil.

How Often Should an Ignition Coil Be Cleaned?

It is recommended to clean your ignition coil every 30,000 miles or once a year to maintain optimal performance. Regular cleaning prevents damage and ensures your engine runs smoothly and efficiently. Additionally, routine maintenance can save you from expensive repairs in the future.

What are the Symptoms of a Dirty Ignition Coil?

Recognizing the symptoms of a dirty ignition coil is essential. Look out for the following signs:

• Decline in power and acceleration.
• Engine misfires and rough idle.
• Irregular fuel economy.
• Engine stalling or difficulty starting.
• The unusual smell of gasoline.

Can I Clean Ignition Coils with WD-40?

While WD-40 is primarily designed to protect the metal from rust and corrosion, it can be used as a diagnostic tool for faulty wires around the ignition coil. Here’s what you can do:

1. Spray the coil and plug wires with WD-40.
2. If the problem persists, consider replacing the plugs and wires.
3. After the replacement, spray WD-40 again.

Conclusion:

Regularly cleaning your car’s ignition coils is vital for optimal performance and longevity. Whether you choose to clean them using an air intake cleaner or a copper wire brush with an electronic cleaner, both methods effectively remove dirt and debris, ensuring a smooth flow of electricity. Maintaining a clean ignition coil can improve engine performance and fuel efficiency and prevent costly repairs in the long run.

FAQs:

Key Notes:

• Regularly cleaning the ignition coil improves engine performance and efficiency.
• Clean the ignition coil using an air intake cleaner or a copper wire brush with an electronic cleaner.
• Label or take pictures of the wires before removing them for easy reassembly.
• Apply Di-Electric grease to the boot plugs, connectors, and ignition coils.
• Cleaning the ignition coil prevents premature failure and saves on repair costs.
• Symptoms of a dirty ignition coil include power decline, misfires, and irregular fuel economy.
• WD-40 can be a diagnostic tool for detecting faulty wires around the ignition coil.