🔧 Escape - Spark Plug Replacement

This is a solid beginner-friendly job. You’ll remove the four ignition coils, replace one plug at a time, then reinstall everything carefully. The plugs sit in an aluminum cylinder head, so starting them by hand and using a torque wrench are non-negotiable.

Difficulty Level: Beginner | Estimated Time: 1-1.5 hours

Verified specifications: Set each plug gap between 0.025-0.029 inch (0.65-0.75 mm). Ford identifies four spark plugs for this 1.5L EcoBoost engine. fordservicecontent.com)

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⚠️ Safety & Precautions

• 🌡️ Let the engine become completely cold before removing the plugs.
• 🧤 Wear gloves and safety glasses.
• 🔑 Keep the ignition switched off and the key away from the vehicle.
• ⚡ Do not pull ignition coils while the engine is running.
• 🧹 Remove dirt from each plug well before loosening the plug.
• 🛑 Stop if a plug needs heavy force. Damaging aluminum threads gets expensive fast.
• 🔋 Battery disconnection is not normally required for this repair.

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🔧 Required Tools

You’ll need the following tools for this repair:

• 8mm socket
• 14mm thin-wall spark plug socket
• 3/8-inch-drive ratchet
• 3/8-inch-drive 6-inch extension
• 3/8-inch-drive inch-pound torque wrench
• Wire-style spark plug gap gauge
• Compressed-air blow gun or electronics-safe canned air
• Clean shop towels
• Nitrile gloves
• Safety glasses

A spark plug socket has an insert or magnet that holds the plug while you lift it from the deep well.

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Vehicle-matched spark plugs - Qty: 4
• Ignition coil boots - Qty: 4 only if cracked, swollen, oil-soaked, or carbon-tracked

Ford specifies an original-equipment-style plug for this engine. The matching spark plugs and plug tools are open in the parts sidebar. fordservicecontent.com

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📋 Before You Begin

• 🚗 Park your Escape on level ground, select Park, and apply the parking brake.
• ❄️ Allow the engine to cool for at least two hours.
• 📦 Compare all four replacement plugs before opening the engine.
• 📏 Check each new plug with the wire-style gauge. The correct range is 0.025-0.029 inch (0.65-0.75 mm). fordservicecontent.com
• 🚫 Do not coat the plug threads with anti-seize unless the plug manufacturer specifically requires it. NGK, for example, advises against anti-seize on its plated plugs because it alters tightening force. ngksparkplugs.com
• 🔄 Work on one cylinder at a time so the connectors and coils remain organized.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the engine cover

• Use both hands to lift the plastic engine cover straight upward from its rubber mounting grommets.
• Set the cover away from the work area so dirt cannot fall from it into the plug wells.

Step 2: Clean around the ignition coils

• Use compressed air and safety glasses to blow loose sand and dirt away from all four coils.
• Keep the air nozzle several inches away from connectors and wiring.
• Clean wells save cylinder walls.

Step 3: Disconnect the first ignition coil

• Press the electrical connector’s locking tab and pull the connector straight back by its plastic housing.
• Do not pull on the wires.
• If the connector sticks, press it inward first, depress the tab, and then pull it back.

Step 4: Remove the first ignition coil

• Use the 8mm socket, extension, and ratchet to remove the coil hold-down bolt.
• Twist the coil gently to break the rubber boot loose, then pull the coil straight upward.
• Inspect the boot for cracks, burned lines, swelling, oil, or coolant.

Step 5: Clean the spark plug well

• Use compressed air again to remove debris from the empty plug well.
• Do not remove the spark plug until the well is clean.

Step 6: Remove the old spark plug

• Place the 14mm thin-wall spark plug socket and 6-inch extension squarely over the plug.
• Use the 3/8-inch-drive ratchet to turn the plug counterclockwise.
• Once loose, spin it out slowly and lift it from the well.
• If it binds, turn it slightly clockwise, then loosen it again. Don’t force it.

Step 7: Inspect the old plug

• A light tan or gray firing tip is generally normal.
• Wet fuel may indicate a misfire. Heavy oil may indicate an internal engine or valve-cover sealing problem.
• A steam-cleaned white plug, unexplained coolant loss, or coolant inside a cylinder needs diagnosis before installing plugs and calling the repair complete.

Step 8: Check the new spark plug

• Use the wire-style spark plug gap gauge to confirm 0.025-0.029 inch (0.65-0.75 mm). fordservicecontent.com
• Do not push against the delicate center electrode.
• Replace a plug if its ceramic insulator is cracked or its electrode is damaged.

Step 9: Start the new plug by hand

• Place the plug in the 14mm thin-wall spark plug socket attached only to the extension.
• Lower it straight into the well.
• Turn the extension clockwise by hand for several complete turns.
• If it does not turn easily, remove it and start again. Never use the ratchet to begin the threads.

Step 10: Torque the spark plug

• Attach the 3/8-inch-drive inch-pound torque wrench to the extension.
• Torque the spark plug to 12 Nm (106 in-lbs or 9 ft-lbs).
• Stop as soon as the torque wrench clicks. Don’t click it repeatedly.
• This light torque is intentional because the plug threads into an aluminum cylinder head. Ford performance installation guidance also uses 12 Nm (106 in-lbs) for comparable EcoBoost plug installation. performanceparts.ford.com

Step 11: Reinstall the ignition coil

• Push the coil straight down until the boot seats fully over the plug.
• Install the hold-down bolt by hand.
• Use the 8mm socket and torque wrench to tighten it to 8 Nm (71 in-lbs). openlaborproject.com
• Push the electrical connector into place until its lock clicks.

Step 12: Replace the remaining plugs

• Repeat Steps 3 through 11 for the remaining three cylinders.
• Keep each open plug well clean and install every plug by hand before using the torque wrench.

Step 13: Reinstall the engine cover

• Inspect the rubber mounting grommets and make sure none remained attached to the old cover locations.
• Align the engine cover over its mounting posts.
• Press straight downward with both hands until every grommet seats.

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✅ After Repair

• 🔍 Confirm all four coil connectors are locked and no tools remain in the engine bay.
• 🚙 Start the engine and let it idle for two or three minutes.
• 👂 Listen for a steady idle. A severe shake, flashing check-engine light, or fuel smell means shut the engine off immediately.
• 🧰 If a misfire appears, recheck the coil connectors and verify each coil is fully seated.
• 🛣️ Take a short test drive using light acceleration first, then recheck for warning lights.
• 💻 No programming, battery registration, or infotainment reset is required.

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💰 DIY vs Shop Cost

Shop Cost: $180-$350 (parts + labor)

DIY Cost: $40-$100 (parts only)

You Save: $80-$250 by doing it yourself!

Shop labor rates vary by market. This repair generally takes a shop approximately 0.7-1.0 hour.

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