🔧 Ignition Coils - Replacement

Your Accord uses one ignition coil per cylinder. Replacing them is straightforward: remove the engine cover, disconnect the coil connectors, swap the coils, and reinstall everything securely.

Difficulty Level: Beginner | Estimated Time: 1-2 hours

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⚠️ Safety & Precautions

• Let the engine cool completely before starting. Coils sit on the valve covers and can be hot.
• Turn the ignition OFF and remove the key/fob from the vehicle.
• Disconnect the negative battery cable before unplugging ignition components.
• Do not touch coil terminals with the ignition on.
• Keep dirt out of the spark plug wells.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4-inch ratchet
• 1/4-inch extension
• Flat-blade trim tool
• Small pick tool
• Torque wrench
• Dielectric grease
• Safety glasses
• Mechanic gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Ignition coil set - Qty: 6
• Valve cover gasket set - Qty: 1
• Spark plug tube seals - Qty: 1 set

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Make sure the engine is cool.
• Disconnect the negative battery terminal using a 10mm socket.
• Have the new coils ready so you can swap one at a time.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the engine cover

• Lift off the plastic engine cover by hand. If it feels stuck, gently rock it side to side.
• Work slowly to avoid breaking clips.

Step 2: Disconnect the battery

• Use a 10mm socket and 1/4-inch ratchet to remove the negative battery terminal.
• Move the cable aside so it cannot spring back and touch the post.

Step 3: Access the ignition coils

• Find the six ignition coils on top of the engine, one above each spark plug.
• If any intake ducting or cover blocks access, remove it with a 10mm socket or flat-blade trim tool.

Step 4: Unplug each coil

• Use a small pick tool to release the connector lock if needed.
• Press the connector tab and pull the plug straight off each coil.
• Do not pull on the wires.

Step 5: Remove the coil hold-down bolts

• Use a 10mm socket, 1/4-inch ratchet, and extension to remove each coil bolt.
• Keep the bolts in order so they go back in the same spots.
• Torque on reinstall: 12 Nm (106 in-lbs)

Step 6: Remove the old ignition coils

• Twist each coil slightly, then pull it straight up out of the spark plug well.
• If a coil is stuck, wiggle it gently instead of forcing it.

Step 7: Install the new ignition coils

• Apply a small amount of dielectric grease inside each coil boot.
• Push each new coil straight down until it seats fully on the spark plug.
• Reinstall the coil bolt and tighten with a torque wrench to 12 Nm (106 in-lbs).

Step 8: Reconnect the electrical connectors

• Push each connector onto its coil until it clicks.
• Make sure every connector lock is fully engaged.

Step 9: Reassemble the intake parts and engine cover

• Reinstall any parts removed for access using the 10mm socket and flat-blade trim tool.
• Press the engine cover back into place by hand.

Step 10: Reconnect the battery and test

• Reinstall the negative battery cable with the 10mm socket.
• Start the engine and listen for a smooth idle.
• Check for misfire warning lights on the dash.

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✅ After Repair

• Let the engine idle for a few minutes and confirm it runs smoothly.
• If the check engine light was on, clear codes with a scan tool after the repair.
• If a misfire returns, the spark plugs may also need inspection or replacement.

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💰 DIY vs Shop Cost

Shop Cost: $450-$900 (parts + labor)

DIY Cost: $180-$420 (parts only)

You Save: $270-$480 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1-2 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.