🔧 Ignition Coils - Replacement

Your Equinox uses coil-on-plug ignition, so each coil sits directly on top of a spark plug. Replacing a bad coil can fix misfires, rough idle, and flashing check engine light issues. On the 2.4L engine, the job is straightforward and usually takes under an hour.

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

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⚠️ Safety & Precautions

• Work with the engine off and cool.
• Disconnect the negative battery cable before starting.
• Keep hands clear of the cooling fans if the key is on during testing.
• Do not force coil connectors; the plastic locks can break easily.

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🔧 Required Tools

You'll need the following tools for this repair:

• 8mm socket
• 10mm socket
• Ratchet
• 3-inch extension
• Trim panel tool
• Flat blade pick
• Torque wrench
• Safety glasses
• Mechanic gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Ignition coil - Qty: 1 per failed coil
• Dielectric grease - Qty: 1
• Ignition coil bolt - Qty: 1 per coil, if damaged

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Let the engine cool fully.
• Disconnect the negative battery terminal using a 10mm socket.
• If the check engine light is on, a scan tool can help confirm which cylinder is misfiring.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the engine cover

• Pull straight up on the plastic engine cover to remove it.
• If yours is tight, gently rock it side to side while lifting.

Step 2: Locate the ignition coils

• The coils sit in a row on top of the engine, one per spark plug.
• Identify the coil for the cylinder you are replacing.

Step 3: Unplug the coil connector

• Use a flat blade pick to release the connector lock if needed.
• Press the tab and pull the connector straight off the coil.
• Do not pry on the wires.

Step 4: Remove the coil retaining bolt

• Use an 8mm socket with a ratchet and extension to remove the coil bolt.
• Set the bolt aside if you plan to reuse it.
• Torque on install: 8 Nm (71 in-lbs)

Step 5: Remove the ignition coil

• Twist the coil gently and pull it straight up.
• If it sticks, wiggle it lightly while lifting.
• Pull straight up to avoid damage.

Step 6: Inspect the spark plug well

• Look for oil, water, or broken rubber in the plug tube.
• If you see oil in the well, the valve cover may need repair too.

Step 7: Install the new ignition coil

• Apply a small amount of dielectric grease inside the coil boot.
• Slide the new coil straight down onto the spark plug.
• Install the retaining bolt by hand first, then tighten with an 8mm socket.
• Torque to 8 Nm (71 in-lbs)

Step 8: Reconnect the electrical connector

• Push the connector onto the coil until it clicks.
• Make sure the lock is fully seated.

Step 9: Reinstall the engine cover and battery cable

• Press the engine cover back into place.
• Reconnect the negative battery terminal with a 10mm socket.

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✅ After Repair

• Start the engine and let it idle.
• Check for smooth operation and no warning lights.
• If the check engine light was on, clear codes with a scan tool.
• If misfire codes return, the spark plug or wiring may also need inspection.

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💰 DIY vs Shop Cost

Shop Cost: $180-$400 (parts + labor)

DIY Cost: $40-$160 (parts only)

You Save: $140-$240 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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