🔧 Fusion - Starter Motor Replacement

The starter motor cranks your engine when you turn the key. If it’s failing, you may hear a single click, slow cranking, or nothing at all even with a good battery. On your Fusion, the starter sits where the engine meets the transmission and is usually accessed from below (and sometimes easier with a little access cleared up top).

Difficulty Level: Intermediate | Estimated Time: 1.5-3 hours

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⚠️ Safety & Precautions

• 🛑 Disconnect the battery before touching starter wiring (prevents shorting the main power cable).
• 🛑 Support the car with jack stands on solid, level ground; never rely on a floor jack alone.
• 🛑 Keep tools away from the starter’s main power stud; it’s direct battery power.
• 🛑 Let the exhaust/catalyst cool fully if you drove recently.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Safety glasses
• Mechanic gloves
• Metric socket set (8mm-18mm)
• 1/4" ratchet
• 3/8" ratchet
• 3/8" torque wrench (10-100 Nm range)
• 6" extension
• 12" extension
• Universal joint adapter
• Metric combination wrench set (8mm-18mm)
• Flat trim tool
• Phillips screwdriver
• Needle-nose pliers
• Battery terminal puller (specialty)
• Wire brush
• Shop light

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Starter motor assembly - Qty: 1
• Starter electrical terminal nut kit - Qty: 1
• Dielectric grease - Qty: 1
• Battery terminal anti-corrosion pads - Qty: 2

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📋 Before You Begin

• Park on level ground, set the parking brake, and place wheel chocks behind the rear wheels.
• Open the hood and make sure you have your radio codes (if applicable) and presets noted.
• Disconnect the battery: use a 10mm socket to remove the negative (-) terminal first, then the positive (+). Negative off first prevents accidental shorts.
• Raise the front and support it securely on jack stands at the proper lift points.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the lower splash shield (if equipped)

• Use a flat trim tool and metric socket set (8mm-10mm) to remove the clips/bolts holding the lower engine cover.
• Set the hardware aside in a small tray so nothing gets lost.

Step 2: Create access from above (recommended)

• Remove the air intake duct/air box if it blocks access: use a Phillips screwdriver and 8mm socket for hose clamps and fasteners.
• If needed for hand room, remove the battery and battery tray: use a 10mm socket and 13mm socket.
• A shop light helps spot the wiring connectors.

Step 3: Locate the starter and label the wires

• From below, aim your shop light up at the joint between the engine and transmission; the starter is bolted to the bellhousing with a smaller cylinder (the solenoid) on it.
• Before removing anything, take a clear photo of the wiring with your phone for reference.

Step 4: Disconnect the starter wiring

• Remove the small control wire connector from the solenoid using needle-nose pliers (gentle pull, don’t yank the wire).
• Remove the nut on the large battery cable (B+) stud using a 13mm socket (size may vary slightly by starter brand).
• Move the cable aside and cover the end so it can’t touch metal (even though the battery is disconnected, this keeps things tidy).
• When reinstalling: Torque the B+ terminal nut to 10 Nm (89 in-lbs).

Step 5: Remove the starter mounting bolts

• Support the starter with one hand.
• Use a 3/8" ratchet, 12" extension, and metric socket set (13mm-15mm) to remove the starter mounting bolts.
• A universal joint adapter helps if one bolt is at an angle. (A universal joint is a swivel that lets the socket bend.)
• Remove the starter from the bellhousing and lower it out carefully.
• When reinstalling: Torque the starter mounting bolts to 35 Nm (26 ft-lbs).

Step 6: Compare parts and install the new starter

• On the ground, compare the old and new starter (bolt holes, nose length, electrical studs) before installing.
• Position the new starter into place and start all mounting bolts by hand first to prevent cross-threading.
• Use a 3/8" torque wrench to tighten: Torque the starter mounting bolts to 35 Nm (26 ft-lbs).

Step 7: Reconnect starter wiring

• Install the large battery cable onto the B+ stud and tighten with a 13mm socket: Torque the B+ terminal nut to 10 Nm (89 in-lbs).
• Reconnect the small control wire connector firmly until it clicks/seats.
• Add a thin film of dielectric grease to the connector seal area only (not on the stud threads).

Step 8: Reinstall access parts and splash shield

• Reinstall the battery tray, battery, and air intake components using a 10mm socket and 13mm socket as needed.
• Reinstall the lower splash shield using a flat trim tool and 8mm-10mm socket.

Step 9: Reconnect the battery and lower the car

• Clean battery terminals with a wire brush.
• Reconnect the battery: positive (+) first, then negative (-), using a 10mm socket.
• Install battery terminal anti-corrosion pads after tightening.
• Lower the car from the jack stands using the floor jack.

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✅ After Repair

• Start the engine and confirm it cranks strongly with no clicking or grinding noises.
• Check that no warning lights are on related to low voltage.
• With the engine running, verify the battery light is off and electrical items work normally.
• Recheck for loose tools/fasteners and make sure the air intake clamps are tight (prevents rough idle).

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💰 DIY vs Shop Cost

Shop Cost: $450-$850 (parts + labor)

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

You Save: $330-$530 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-3 hours.

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🎯 Ready to get started?

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