🔧 CR-V - Ignition Coil Replacement

Your CR-V has one ignition coil above each spark plug. Replacing the four coils involves disconnecting their electrical connectors, removing one retaining bolt per coil, and installing the new coils.

Difficulty Level: Beginner | Estimated Time: 0.5-1 hour

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⚠️ Safety & Precautions

• ⚠️ Let the engine cool completely before touching components around the cylinder head.
• ⚠️ Keep dirt and loose hardware out of the spark-plug wells.
• ⚠️ Switch the ignition off and keep the key away from your CR-V.
• ⚠️ Disconnect the negative battery cable before unplugging the coils.
• ⚠️ Never start or crank the engine while the coils are removed.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 3/8-inch-drive ratchet
• 3/8-inch-drive 6-inch extension
• 3/8-inch-drive torque wrench rated 5-25 Nm
• Plastic trim tool
• Compressed-air blower with nozzle
• Nitrile mechanic gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Ignition coils for 2.4L engine - Qty: 4

Ignition coils do not have to be replaced in pairs. If testing identified only one failed coil, replacing that coil alone is acceptable; use four for a complete-set replacement.

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📋 Before You Begin

• 📍 Park your CR-V on level ground, select Park, and apply the parking brake.
• 🌡️ Open the hood and allow the engine to become completely cool.
• 🔑 Switch off all electrical accessories and move the key away from the vehicle.
• 🔋 Wait at least three minutes, then disconnect the negative battery terminal using a 10mm socket.
• 🧹 Clean loose dust from around the top of the engine before opening any spark-plug well.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Disconnect the Battery

• Put on safety glasses and nitrile mechanic gloves.
• Use a 10mm socket and 3/8-inch-drive ratchet to loosen the negative battery-terminal nut.
• Lift the terminal from the negative battery post and position it where it cannot spring back into contact.
• Do not disconnect the positive terminal.

Step 2: Remove the Engine Cover

• Grip the plastic engine cover near its mounting points and pull it straight upward to release its rubber grommets.
• If needed, use a plastic trim tool gently at a mounting point. Do not pry against wiring or the valve cover.
• Place the cover aside where it will not be stepped on.

Step 3: Clean Around the Coils

• Locate the four ignition coils in a straight row on top of the engine.
• Use a compressed-air blower with nozzle to remove dust from around each coil and spark-plug well.
• Wear safety glasses and direct debris away from your face.

Step 4: Disconnect the Coil Connectors

• Press the locking tab on the first electrical connector and pull the connector straight back by its plastic housing.
• Use a plastic trim tool only if a connector is stubborn. Do not pull on the wires.
• Repeat for the remaining three connectors.
• A connector lock is the small flexible tab that keeps the plug from vibrating loose.

Step 5: Remove the Old Coils

• Use a 10mm socket, 6-inch extension, and 3/8-inch-drive ratchet to remove the retaining bolt from each coil.
• Keep the bolts in a clean location.
• Twist each coil gently to loosen its rubber boot, then pull the coil straight upward.
• Inspect each spark-plug well for oil or water. If liquid is present, do not install the new coil until the leak or water entry is corrected.
• Work one cylinder at a time to prevent mix-ups.

Step 6: Compare and Install the New Coils

• Compare each new coil with the removed coil. The connector, mounting ear, boot length, and overall shape must match.
• Do not apply grease unless the coil manufacturer specifically supplies and instructs you to use it.
• Push each new coil straight over its spark plug until the rubber boot is fully seated.
• Align the coil mounting ear with its threaded hole.

Step 7: Tighten the Coil Bolts

• Start every retaining bolt by hand to avoid cross-threading the aluminum cylinder head.
• Use a 10mm socket, 6-inch extension, and 3/8-inch-drive torque wrench to tighten each bolt.
• Torque to 12 Nm (9 ft-lbs).
• Do not overtighten these small bolts.

Step 8: Reconnect the Electrical Connectors

• Push each connector squarely into its ignition coil until the locking tab clicks.
• Gently tug each connector housing to verify it is locked. Do not pull on the wires.
• Check that no wiring is trapped beneath a coil or stretched tightly.

Step 9: Reinstall the Engine Cover

• Align the plastic engine cover with its rubber mounting grommets.
• Press down directly over each mounting point by hand until the cover is fully seated.
• Do not strike the cover or force it sideways.

Step 10: Reconnect the Battery

• Place the negative terminal fully onto the negative battery post.
• Use a 10mm socket and 3/8-inch-drive torque wrench to tighten the terminal nut.
• Torque to 5.4 Nm (48 in-lbs).
• Confirm the terminal cannot rotate by hand. Avoid overtightening it.

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✅ After Repair

• ✅ Start the engine and let it idle for several minutes. It should idle smoothly without shaking.
• ✅ Confirm the check-engine light does not flash. A flashing light indicates an active misfire; shut the engine off immediately.
• ✅ Listen for snapping or clicking around the coils, which can indicate an electrical arc or an incompletely seated boot.
• ✅ Take a short, gentle test drive and verify smooth acceleration.
• ✅ If the check-engine light remains on, use a compatible diagnostic scan tool to read and clear stored misfire codes only after confirming the repair.
• ✅ The clock and certain saved settings may need to be restored after disconnecting the battery.
• ✅ No coil coding, programming, or registration is required.

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💰 DIY vs Shop Cost

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

DIY Cost: $180-$600 (parts only)

You Save: $270-$300 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1 hour.

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🎯 Ready to get started?

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