🔧 1500 - Ignition Coil Replacement

Your 1500’s ignition coils sit on top of the spark plugs (coil-on-plug). Replacing a bad coil can fix misfires, rough idle, flashing check-engine light, and loss of power.

Difficulty Level: Intermediate | Estimated Time: 1.0-2.0 hours

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⚠️ Safety & Precautions

• 🧯 Let the engine cool completely before starting.
• 🧤 Disconnect the negative battery cable to prevent accidental shorts.
• 👓 Keep dirt out of spark plug holes; blow debris away before pulling a coil.
• 🔥 Don’t touch exhaust manifolds/heat shields; they can burn you.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 1/4" drive ratchet
• 6" extension (1/4" drive)
• Torque wrench (in-lb)
• Flat-blade screwdriver
• Trim clip tool
• Pick tool
• Flashlight
• Shop towels
• Compressed air blow gun
• Safety glasses
• Mechanic gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Ignition coil - Qty: 1 (or Qty: 6 to replace all)
• Dielectric grease - Qty: 1

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📋 Before You Begin

• 🅿️ Park on level ground, shift to Park, and set the parking brake.
• 🔋 Open the hood and disconnect the negative battery cable using a 10mm socket.
• 💨 If the area around the coils is dusty, use compressed air blow gun to clean around them first.
• Do one coil at a time to avoid mix-ups.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the engine cover (if equipped)

• Grab the cover and pull upward firmly to release it from the grommets.
• Set it aside where it won’t get stepped on.

Step 2: Move the air intake tube/resonator out of the way (for access)

• Loosen the intake clamps using a flat-blade screwdriver.
• Release any intake push-clips using a trim clip tool.
• Lift the intake tube/resonator off and set it aside.

Step 3: Unplug the coil electrical connector

• Locate the coil you’re replacing.
• Unlock the connector (some have a small red lock) using a pick tool.
• Press the tab and pull the connector straight off.

Step 4: Remove the coil hold-down bolt

• Remove the bolt using a 10mm socket, 6" extension, and 1/4" drive ratchet.
• Put the bolt somewhere safe (they like to disappear).

Step 5: Remove the ignition coil

• Twist the coil slightly to break the seal, then pull straight up.
• If it feels stuck, keep twisting gently—don’t pry hard on plastic parts.
• Blow out the spark plug well using a compressed air blow gun before installing the new coil.

Step 6: Install the new coil

• Apply a thin smear of dielectric grease inside the new coil boot (it helps prevent moisture and makes future removal easier).
• Push the new coil straight down until it seats fully on the spark plug.
• Install the hold-down bolt by hand first to avoid cross-threading.
• Tighten with a torque wrench (in-lb): Torque to 71 in-lb (8 Nm).

Step 7: Reconnect the coil connector

• Push the connector on until it clicks.
• If equipped, re-lock the connector using a pick tool.

Step 8: Reinstall the intake parts and engine cover

• Reinstall the intake tube/resonator and tighten clamps using a flat-blade screwdriver.
• Reinstall any clips using a trim clip tool.
• Press the engine cover back onto its grommets.

Step 9: Reconnect the battery

• Reconnect the negative battery cable using a 10mm socket.

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✅ After Repair

• 🟢 Start the engine and let it idle for 1-2 minutes. It should run smooth.
• 🔎 If you had a check-engine light, use a scan tool to clear codes and confirm the misfire does not return.
• 🧪 Take a short test drive and re-check for warning lights.
• If the misfire stays, the spark plug may be next.

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💰 DIY vs Shop Cost

Shop Cost: $200-$450 (parts + labor, depends on how many coils)

DIY Cost: $35-$300 (parts only, 1 coil to all 6)

You Save: $150-$250+ by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.5 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.