🔧 Explorer - Starter Motor Replacement

The starter motor cranks your engine when you turn the key. If it’s failing, you may get a single click, slow cranking, or no crank at all. Replacing it is mostly an access-and-bolts job from underneath.

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

---

⚠️ Safety & Precautions

• ⚠️ Disconnect the battery negative cable first to prevent electrical shorting.
• ⚠️ Support the Explorer with jack stands; never work under a vehicle held only by a jack.
• ⚠️ Let the exhaust cool first; the starter area can be hot.
• ⚠️ Keep the key out of the ignition so nobody cranks the engine.

---

🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Mechanic gloves
• Wheel chocks
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• 10mm socket
• 13mm socket
• 8mm socket
• 3/8" ratchet
• 3/8" torque wrench
• 3/8" extension set (3", 6", 12")
• 3/8" swivel adapter
• Flat-blade screwdriver
• Trim clip remover
• Flashlight

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Starter motor - Qty: 1
• Dielectric grease - Qty: 1

---

📋 Before You Begin

• Park on level ground, turn the ignition OFF, and set the parking brake.
• Place wheel chocks behind the rear wheels.
• Open the hood and get access to the battery.
• Battery disconnect is required for this job.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Disconnect the battery

• Use a 10mm socket to loosen the negative battery terminal and remove it from the battery post.
• Move the cable aside so it can’t spring back and touch the terminal.
• When reinstalling later: Torque to 7 Nm (62 in-lbs).

Step 2: Raise and support the front of the Explorer

• Use a floor jack (rated 3-ton minimum) to lift the front safely.
• Set the vehicle down onto jack stands (rated 3-ton minimum) under solid frame points.
• Give the vehicle a gentle push to confirm it’s stable before crawling under.

Step 3: Remove the lower splash shield (if equipped)

• Use an 8mm socket for bolts and a trim clip remover for plastic clips.
• Set all fasteners aside so you don’t lose them.

Step 4: Locate the starter

• Use a flashlight and look at the passenger side where the engine meets the transmission (bellhousing area).
• The starter is the small motor with a thicker battery cable attached to it.

Step 5: Disconnect the starter wiring

• Use a flat-blade screwdriver to carefully release the small signal connector (it’s the “start” command wire).
• Use a 13mm socket to remove the nut for the thick battery cable (B+ cable) from the starter terminal.
• Take a quick photo before removing wires.
• When reinstalling later: Torque the B+ terminal nut to 9 Nm (80 in-lbs).

Step 6: Remove the starter mounting bolts

• Support the starter with one hand.
• Use a 13mm socket with a 3/8" extension set (3", 6", 12") and 3/8" swivel adapter as needed to remove the two starter mounting bolts.
• Lower the starter out carefully (it has some weight to it).
• When installing later: Torque starter mounting bolts to 25 Nm (18 ft-lbs).

Step 7: Install the new starter

• Lift the new starter into position and start both mounting bolts by hand (prevents cross-threading).
• Use a 13mm socket and 3/8" ratchet to snug the bolts.
• Use a 3/8" torque wrench: Torque starter mounting bolts to 25 Nm (18 ft-lbs).

Step 8: Reconnect the wiring

• Apply a thin film of dielectric grease to the electrical connections (helps resist corrosion).
• Install the thick battery cable onto the starter terminal and tighten with a 13mm socket.
• Use a 3/8" torque wrench: Torque the B+ terminal nut to 9 Nm (80 in-lbs).
• Reconnect the small signal connector until it clicks into place.

Step 9: Reinstall the splash shield and lower the vehicle

• Reinstall the shield using an 8mm socket and trim clip remover as needed.
• Use the floor jack (rated 3-ton minimum) to lift slightly, remove the jack stands, and lower the vehicle.

Step 10: Reconnect the battery and test

• Reconnect the negative battery terminal using a 10mm socket.
• Use a 3/8" torque wrench: Torque to 7 Nm (62 in-lbs).
• Start the engine and listen: it should crank strong and smooth with no grinding.

---

✅ After Repair

• Start the Explorer 3–5 times to confirm consistent cranking.
• Check under the vehicle for any loose wiring near the starter.
• If you hear a loud whine or grinding, shut it off and recheck starter seating and bolt tightness.

---

💰 DIY vs Shop Cost

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

DIY Cost: $150-$350 (parts only)

You Save: $300-$500 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-2.0 hours.

---

🎯 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.