🔧 Traverse - Starter Motor Replacement

The starter motor spins your A4’s—(sorry)—your Traverse’s engine to begin starting. When it fails, you may get a single click, slow cranking, or no crank at all even with a good battery. This job is mostly unbolt/bolt-on, but access can vary on the 3.6L depending on what’s in the way.

Difficulty Level: Intermediate | Estimated Time: 2-6 hours

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⚠️ Safety & Precautions

• ⚠️ Disconnect the battery negative cable before touching the starter wiring (the large cable is always “hot”).
• ⚠️ Support the Traverse on jack stands on a level surface; never work under a vehicle held only by a jack.
• ⚠️ Let the exhaust/catalyst area cool fully before working nearby.
• ⚠️ After disconnecting the battery, wait at least 2 minutes before working around harnesses (airbag system capacitors need time to discharge).

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 13mm socket
• 15mm socket
• 3/8" ratchet
• 3/8" torque wrench (10–80 Nm range)
• 6" extension
• 12" extension
• Universal joint socket adapter
• Trim clip removal tool
• Flathead screwdriver
• Needle-nose pliers
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Safety glasses
• Mechanic gloves
• Work light

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Starter motor - Qty: 1
• Intake manifold gasket set - Qty: 1
• Throttle body gasket - Qty: 1
• Dielectric grease - Qty: 1

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📋 Before You Begin

• Park on level ground, shift to Park, and chock the rear wheels.
• Open the hood and make sure you have your radio presets/passwords (battery will be disconnected).
• Disconnect the battery negative cable using a 10mm socket, then isolate it so it can’t spring back.
• Take a quick photo of the wiring first.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm which access path you have

• Raise the front safely with a floor jack (rated 3-ton minimum) and support it with jack stands (rated 3-ton minimum).
• Remove the lower splash shield using a trim clip removal tool and 10mm socket.
• If you can clearly reach the starter and its wiring from underneath, use the “Bottom-access” steps below.
• If the starter is blocked/hidden and you can’t reach the bolts/wiring, use the “Top-access (intake off)” steps below.

Step 2 (Bottom-access): Remove the splash shields for working room

• Remove any remaining shields near the transmission area using a 10mm socket and trim clip removal tool.
• Position a work light so you can see the starter body and solenoid (the small cylinder attached to the starter).

Step 3 (Bottom-access): Disconnect starter wiring

• Remove the starter’s main power cable nut with a 13mm socket, then lift the cable off the stud.
• Disconnect the small control connector (or small nut-on wire) using needle-nose pliers or a 10mm socket (depends on connector style).
• Set the wires aside so they cannot touch metal.
• Torque to 9 Nm (80 in-lbs) for the main power stud nut during reassembly.

Step 4 (Bottom-access): Remove the starter mounting bolts

• Support the starter with one hand.
• Remove the starter mounting bolts using a 15mm socket, 3/8" ratchet, and a 6" extension.
• If access is tight, add a universal joint socket adapter and a 12" extension.

Step 5 (Bottom-access): Remove the starter

• Lower the starter out carefully and guide it past nearby lines and brackets.
• Compare the old starter to the new one (same mounting ears, same electrical studs/connectors).

Step 6 (Top-access - intake off): Remove the upper intake components

• Remove the engine cover by pulling upward (no tools).
• Loosen the intake duct clamps using a flathead screwdriver and remove the duct.
• Disconnect any electrical connectors and hoses that prevent removing the intake manifold, using needle-nose pliers for hose clamps.
• Remove the intake manifold fasteners using a 10mm socket and 3/8" ratchet, then lift the manifold off.
• Cover the intake ports with a clean rag so nothing can fall in.
• Don’t drop bolts into the intake.

Step 7 (Top-access - intake off): Disconnect wiring and remove the starter

• Remove the main power cable nut with a 13mm socket, then remove the cable.
• Disconnect the small control connector (or small nut-on wire) using needle-nose pliers or a 10mm socket.
• Remove the starter mounting bolts using a 15mm socket, ratchet, and extension.

Step 8: Install the new starter

• Position the new starter in place and start both mounting bolts by hand (prevents cross-threading).
• Tighten the starter mounting bolts with a 15mm socket and then torque wrench.
• Torque to 50 Nm (37 ft-lbs) for starter mounting bolts.

Step 9: Reconnect the starter wiring

• Install the main power cable and tighten the nut using a 13mm socket.
• Torque to 9 Nm (80 in-lbs) for the main power stud nut.
• Reconnect the small control connector until it clicks (or tighten its nut if equipped).
• Apply a thin smear of dielectric grease to the connector seal (not the metal contact).

Step 10 (Top-access only): Reinstall the intake manifold

• Remove the rags covering the intake ports.
• Install the new intake manifold gasket set and set the manifold in place.
• Tighten intake manifold fasteners evenly using a 10mm socket.
• Reinstall the intake duct and tighten clamps using a flathead screwdriver.

Step 11: Reinstall shields and lower the vehicle

• Reinstall the lower splash shield using a 10mm socket and trim clip removal tool.
• Lower the Traverse from the jack stands using the floor jack.

Step 12: Reconnect the battery

• Reconnect the battery negative cable using a 10mm socket.
• Make sure the terminal is fully seated and secure.

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✅ After Repair

• Start the Traverse and confirm it cranks strongly and starts normally.
• Listen for abnormal grinding or a “whirring” sound after start (can indicate misalignment or loose bolts).
• Check that no warning lights appear and that all intake hoses/connectors are reattached (top-access path).
• If it still clicks/no-cranks, recheck battery connections and the starter’s main power cable tightness.

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💰 DIY vs Shop Cost

Shop Cost: $450-$900 (parts + labor)

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

You Save: $300-$550 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-4 hours.

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🎯 Ready to get started?

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