🔧 Camaro - Ignition Coil Replacement

Your Camaro’s ignition coils sit on top of the spark plugs and create the high voltage needed to fire each cylinder. Replacing a bad coil can fix misfires, rough idle, and flashing check-engine light. You can replace one failed coil or replace all six as a set for even performance.

Difficulty Level: Beginner | Estimated Time: 0.7-1.5 hours

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⚠️ Safety & Precautions

• ⚠️ Let the engine cool fully before starting (hot burns).
• ⚠️ Disconnect the negative battery cable to prevent accidental shorts.
• ⚠️ Do not pull on wiring—only on connectors.
• ⚠️ Keep dirt out of spark plug wells; debris can cause misfires.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4" ratchet
• 3" extension (1/4" drive)
• Torque wrench (in-lb or low Nm range)
• Trim/panel removal tool
• Small flat-blade screwdriver
• Flashlight
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Ignition coil - Qty: 1 (or Qty: 6 if replacing all)
• Dielectric grease - Qty: 1

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📋 Before You Begin

• 🔎 Park on level ground, engine OFF, key out of the car.
• 🔎 Open the hood and let the engine cool.
• 🔎 Disconnect the negative battery cable using a 10mm socket.
• 🔎 Decide your approach: replace the single failed coil, or replace all six coils.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the engine cover (if equipped)

• Use a trim/panel removal tool to gently lift the cover corners.
• Pull straight up to release the rubber grommets. Don’t pry on plastic edges.

Step 2: Locate the ignition coils

• Use a flashlight and find the six coils sitting on top of the valve covers.
• Each coil has an electrical connector and one retaining bolt.

Step 3: Unplug the coil electrical connector

• Use a small flat-blade screwdriver only if needed to help release the lock.
• Pull the connector straight off the coil.
• If you see a small secondary lock, that is a “CPA” clip (connector-position assurance). It must be released before the connector will come off.

Step 4: Remove the coil retaining bolt

• Use a 10mm socket, 1/4" ratchet, and 3" extension to remove the bolt.
• Set the bolt aside so it doesn’t fall into the engine bay.

Step 5: Remove the ignition coil

• Grip the coil body and twist it gently left-right to break the seal.
• Pull straight up to remove it from the spark plug well.
• Use a flashlight to check the spark plug well for oil or water.

Step 6: Prep and install the new coil

• Apply a very small amount of dielectric grease inside the rubber boot (the rubber “cup” that seals to the spark plug).
• Push the new coil straight down until it fully seats on the spark plug.
• Install the retaining bolt by hand first to avoid cross-threading.
• Tighten the bolt with a torque wrench: Torque to 10 Nm (89 in-lbs).

Step 7: Reconnect the coil connector

• Push the connector on until it clicks.
• If your connector uses a CPA clip, re-engage it so it locks.

Step 8: Repeat for remaining coils (if replacing all)

• Work one coil at a time to avoid mixing connectors.
• Use the same 10mm socket and torque wrench on each coil bolt: Torque to 10 Nm (89 in-lbs).

Step 9: Reinstall the engine cover and reconnect battery

• Reinstall the engine cover by pressing it straight down into the grommets.
• Reconnect the negative battery cable with a 10mm socket.

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✅ After Repair

• ✅ Start the engine and let it idle for 1–2 minutes.
• ✅ Verify the idle is smooth and the check-engine light is not flashing.
• ✅ If the check-engine light stays on, the stored code may need clearing after the fix.
• ✅ If you found oil in a plug well, that points to a valve cover gasket/seal issue that should be repaired to prevent repeat coil failures.

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💰 DIY vs Shop Cost

Shop Cost: ₹6,000-₹22,000 (parts + labor, depending on 1 coil vs all 6)

DIY Cost: ₹2,500-₹15,000 (parts only, depending on 1 coil vs all 6)

You Save: ₹3,500-₹7,000+ by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.7-1.5 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.