🔧 Ignition Coils - Replacement

The ignition coils on your Accord sit on top of each spark plug and provide the spark needed to fire each cylinder. If you have misfires, rough idle, or a flashing check engine light, replacing a weak coil can restore smooth running.

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

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⚠️ Safety & Precautions

• Work on a completely cool engine. The rear bank can stay hot longer than you expect.
• Turn the ignition OFF and keep the key/fob away from the vehicle.
• Disconnect the negative battery cable if you want extra safety while unplugging connectors.
• Do not mix up coil connectors. One loose connector can cause a new misfire.
• If one coil failed from oil in the spark plug tube, inspect for a valve cover leak before installing the new coil.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 3/8-inch ratchet
• 3-inch extension
• Trim clip tool
• Needle-nose pliers
• 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 - Qty: 6
• Valve cover gasket set - Qty: 1, if oil is found in the plug wells

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Let the engine cool fully.
• If the engine cover is fitted, remove it first.
• Replace coils one at a time to avoid mixing locations.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the engine cover

• Pull up evenly on the engine cover to release it from its rubber mounts.
• If it is tight, use both hands and lift straight up. Do not pry hard.

Step 2: Access the ignition coils

• On the V6, the front bank is easier to reach first.
• Use a 10mm socket and 3/8-inch ratchet if any intake ducting or cover brackets block access.
• Move wiring looms gently aside so you can reach each coil connector.

Step 3: Disconnect the first coil connector

• Press the connector tab and pull the plug straight off the coil.
• If the tab is stiff, use needle-nose pliers lightly on the release tab only.
• Pull on the connector body, not the wires.

Step 4: Remove the coil hold-down bolt

• Use a 10mm socket, 3/8-inch ratchet, and 3-inch extension to remove the coil bolt.
• Set the bolt aside safely.
• Torque on installation: 10 Nm (7 ft-lbs)

Step 5: Remove the old ignition coil

• Twist the coil slightly and pull it straight up.
• If it sticks, wiggle gently while lifting. Do not yank sideways.
• Inspect the rubber boot for oil, burns, or cracks.

Step 6: Install the new ignition coil

• Put a small amount of dielectric grease inside the rubber boot.
• Slide the new coil straight down into the spark plug tube.
• Make sure it seats fully and sits flush on the valve cover.

Step 7: Reinstall the coil bolt and connector

• Reinstall the hold-down bolt by hand first.
• Use the 10mm socket and torque wrench to tighten to 10 Nm (7 ft-lbs).
• Reconnect the electrical connector until it clicks.

Step 8: Repeat for the remaining coils

• Work one cylinder at a time so you do not mix parts.
• Replace all coils if the car has high mileage or multiple misfire codes.
• Recheck each connector after installation.

Step 9: Reinstall covers and ducting

• Reinstall any intake ducts, brackets, or the engine cover.
• Make sure all clips and fasteners are fully seated.

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✅ After Repair

• Reconnect the battery if it was disconnected.
• Start the engine and let it idle.
• Check for a smooth idle and no flashing check engine light.
• If the check engine light was on, clear codes with a scan tool and confirm they do not return.
• If misfire codes come back, inspect the spark plugs and the valve cover seals.

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💰 DIY vs Shop Cost

Shop Cost: ₹18,000-₹35,000 (parts + labor)

DIY Cost: ₹12,000-₹24,000 (parts only)

You Save: ₹6,000-₹11,000 by doing it yourself!

Shop labor rates vary but typically run ₹8,000-₹12,000/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.