🔧 Ignition Coils - Replacement

On your Stinger, the ignition coils sit on top of the spark plugs and can be swapped individually or all at once. A bad coil can cause misfires, rough running, and a check engine light. This 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 on a cool engine. Ignition coils sit on hot cylinder heads.
• Turn the ignition off and keep the key/fob away from the car.
• Disconnect the negative battery cable before unplugging coils. Battery disconnect is recommended.
• Do not pull on the wire; always release the connector lock first.
• Handle the coils carefully. Dropping them can damage the internal electronics.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4-inch ratchet
• 6-inch extension
• Flat-head screwdriver
• Trim tool
• Torque wrench
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Ignition coil - Qty: 4

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📋 Before You Begin

• Park on a level surface and set the parking brake.
• Let the engine cool fully.
• Open the hood and remove any loose items around the engine bay.
• Disconnect the negative battery cable before starting.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the engine cover

• Use a trim tool or your hands to lift the engine cover straight up.
• Set it aside in a safe place.
• Lift evenly to avoid breaking the mounts.

Step 2: Disconnect the ignition coil connectors

• Locate the four ignition coils on top of the engine.
• Use a flat-head screwdriver to gently release each connector lock if needed.
• Press the tab and pull each connector straight off the coil.
• Do not yank on the wires.

Step 3: Remove the coil hold-down bolts

• Use a 10mm socket and 1/4-inch ratchet to remove each coil bolt.
• Keep the bolts organized so they go back in the same spots.
• Torque on installation: 9.8 N·m (7.2 ft-lbs)

Step 4: Remove the old coils

• Use your hand to twist each coil slightly, then pull it straight up.
• If a coil is stuck, wiggle it gently while pulling upward.
• Check the rubber boot for oil, cracks, or burning.

Step 5: Install the new coils

• Push each new coil straight down onto the spark plug until it seats fully.
• Reinstall the 10mm bolt by hand first.
• Use a 10mm socket and torque wrench to tighten each bolt to 9.8 N·m (7.2 ft-lbs).
• Hand-start bolts first to prevent cross-threading.

Step 6: Reconnect the electrical connectors

• Push each connector onto its coil until it clicks.
• Make sure the lock tab is fully seated.
• Double-check that all four connectors are secure.

Step 7: Reinstall the engine cover and battery cable

• Press the engine cover back into place.
• Reconnect the negative battery cable.
• Tighten the battery terminal securely.

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✅ After Repair

• Start the engine and let it idle smoothly.
• Check for warning lights and misfires.
• If the check engine light was on, clear codes with a scan tool if needed.
• Take a short test drive and confirm the engine pulls smoothly under acceleration.

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💰 DIY vs Shop Cost

Shop Cost: $280-$620 (parts + labor)

DIY Cost: $120-$320 (parts only)

You Save: $160-$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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