🔧 Rogue - Ignition Coil Replacement

You’ll be removing the plastic engine cover, unplugging each ignition coil, and swapping them with new ones on top of the engine. This restores proper spark to each cylinder and can fix misfires, rough idle, or a check-engine light caused by bad coils.

Difficulty Level: Beginner | Estimated Time: 0.5–1.0 hours

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⚠️ Safety & Precautions

• ⚠️ Always work on a cool engine; hot engine parts can burn your hands.
• ⚠️ Turn the ignition OFF and remove the key from the vehicle before starting.
• ⚠️ Disconnect the negative battery terminal to avoid accidental short circuits or starting.
• ⚠️ Keep metal tools away from the battery positive terminal and electrical connectors.
• ⚠️ Do not pull on wires; only on plastic connectors and coil bodies.

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🔧 Required Tools

You'll need the following tools for this repair:

• 🛠️ 10mm socket
• 🛠️ 1/4" drive ratchet
• 🛠️ 1/4" drive extension (3–6")
• 🛠️ 10mm combination wrench
• 🛠️ Small flathead screwdriver
• 🛠️ Torque wrench (inch-pound, 20–150 in-lb range)
• 🛠️ Torque wrench (foot-pound, 5–50 ft-lb range)
• 🛠️ Mechanic’s gloves
• 🛠️ Safety glasses
• 🛠️ Fender cover or clean towel

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• 🔩 Ignition coil set (4 coils, 2.5L) - Qty: 1 set (replace all 4 recommended)
• 🔩 Ignition coil mounting bolts (optional replacement hardware) - Qty: 4
• 🔩 Dielectric grease (for electrical connectors) - Qty: 1 small tube
• 🔩 Battery terminal protector spray (optional) - Qty: 1

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📋 Before You Begin

• Park your Rogue on level ground, shift to P, and set the parking brake.
• Open the hood and prop it securely with the hood rod.
• Make sure the engine is cool to the touch.
• Locate the battery on the left side of the engine bay as you face the vehicle.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Disconnect the negative battery terminal

• Use the 10mm wrench or 10mm socket with ratchet to loosen the nut on the negative (-) battery terminal.
• Wiggle the negative cable off the terminal and tuck it to the side so it cannot spring back.
• Always remove negative battery cable first.

Step 2: Remove the plastic engine cover

• The engine cover is the large plastic piece on top of the engine.
• Grasp the cover at the front corners and pull straight up to release the rubber grommets. No tools are usually needed.
• If it feels stuck, gently pry up near the corners with the small flathead screwdriver, being careful not to crack the cover.
• Lift the cover off and set it aside in a safe place.

Step 3: Locate the ignition coils

• On your 2.5L engine, there are 4 ignition coils lined up on top of the engine, each sitting over a spark plug.
• Each coil is a small rectangular unit with a single electrical connector and one 10mm bolt.
• Plan to replace all coils in one session.

Step 4: Unplug the electrical connector from the first coil

• Pick one coil to start with (for example, the one closest to the front of the vehicle).
• Press down on the plastic locking tab on the connector with your thumb or the small flathead screwdriver.
• While holding the tab down, pull the connector straight back to unplug it from the coil.
• If it is stuck, gently wiggle the connector while pulling—do not pull on the wires.

Step 5: Remove the ignition coil mounting bolt

• Use the 10mm socket, 1/4" ratchet, and extension to remove the single bolt holding the coil to the engine.
• Turn the bolt counterclockwise until it comes out; set it somewhere safe so it does not fall into the engine bay.
• Keep bolts in order to avoid losing them.

Step 6: Remove the ignition coil

• Grab the top of the coil by hand and gently twist it left and right to break it free from the spark plug well.
• Pull the coil straight up and out of the engine.
• If it resists, twist a bit more while pulling up—do not use excessive force or pry against the plastic.

Step 7: Prepare the new ignition coil

• Compare the new coil to the old one to make sure the shape, connector, and mounting point match.
• Apply a very thin smear of dielectric grease inside the electrical connector opening on the new coil if available. This helps prevent corrosion and makes future removal easier.
• Use only a tiny amount of grease.

Step 8: Install the new ignition coil

• Insert the new coil into the spark plug well, lining up the rubber boot with the spark plug below.
• Push straight down until you feel it seat fully onto the spark plug.
• Align the mounting tab on the coil with the bolt hole in the engine.

Step 9: Reinstall and torque the ignition coil bolt

• Start the coil bolt by hand to avoid cross-threading.
• Use the 10mm socket and ratchet to snug the bolt down.
• Then use the inch-pound torque wrench with 10mm socket to tighten the bolt to 8–10 N·m (71–88 in-lb).
• Do not overtighten; threads are in soft aluminum.

Step 10: Reconnect the electrical connector

• Push the connector straight onto the coil until you hear or feel a click.
• Lightly tug on the connector to confirm it is locked in place.

Step 11: Repeat for the remaining three coils

• Repeat Steps 4–10 for each of the other three coils, one at a time.
• Work methodically so each coil gets unplugged, unbolted, replaced, bolted, and reconnected before you move to the next.
• Same torque spec for all four coils.

Step 12: Reinstall the engine cover

• Align the engine cover over the mounting posts on top of the engine.
• Press down firmly at each corner until the cover snaps into the rubber grommets.
• Check that it is seated evenly and does not rattle.

Step 13: Reconnect the negative battery terminal

• Place the negative (-) battery cable back onto the negative battery post.
• Use the 10mm wrench or 10mm socket to tighten the clamp nut.
• Snug the nut to about 5–7 N·m (44–62 in-lb) with the inch-pound torque wrench, or just firm by hand—do not overtighten.

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✅ After Repair

• Turn the ignition ON, then start the engine. It should idle smoothly without shaking or misfiring.
• If the check engine light was on, it may clear after a few drive cycles; for faster clearing, use a scan tool to erase codes.
• Take a short test drive, gently accelerating and checking for smooth power and no hesitation.
• After the drive, open the hood and listen for unusual clicking, arcing, or hissing sounds around the coils.

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💰 DIY vs Shop Cost

Shop Cost: $350–$550 (parts + labor for all 4 coils)

DIY Cost: $160–$260 (parts only, all 4 coils)

You Save: $190–$290 by doing it yourself!

Shop labor rates vary but typically run $100–$150/hour. This repair takes a shop approximately 0.7–1.0 hours.

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🎯 Ready to get started?

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