🔧 Compass - Starter Motor Replacement

The starter motor spins your engine fast enough for it to start. When it fails, you may get a single click, slow cranking, or no crank at all even with a good battery.

Difficulty Level: Intermediate | Estimated Time: 1.5-3.0 hours

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⚠️ Safety & Precautions

• ⚠️ Disconnect the negative battery cable before touching the starter wiring (the main cable is always “hot”).
• ⚠️ Support your Compass with jack stands on solid, level ground—never rely on a floor jack alone.
• ⚠️ Let the exhaust cool fully if you’ve been driving (burn risk near the starter area).

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Mechanic gloves
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Ratchet (3/8" drive)
• Ratchet (1/2" drive)
• Socket set (metric 8mm-18mm)
• Wobble socket set (metric)
• Extension set (3", 6", 12")
• Torque wrench (10-150 ft-lbs range)
• Trim clip removal tool
• Flat-blade screwdriver
• Pliers
• Work light

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Starter motor assembly - Qty: 1
• Starter mounting bolts - Qty: 2 (recommended if specified with your starter)
• Battery terminal anti-corrosion spray - Qty: 1

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📋 Before You Begin

• 🅿️ Park on level ground, put the shifter in neutral, and set the parking brake.
• 🧱 Chock the rear wheels so the vehicle can’t roll.
• 🔋 Open the hood and locate the battery so you’re ready to disconnect it.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Disconnect the battery

• Use a 10mm socket to loosen the negative battery terminal clamp and remove it from the battery post.
• Tuck the cable end aside so it can’t spring back and touch the battery.

Step 2: Raise and support the front of the vehicle

• Place wheel chocks behind the rear tires.
• Lift the front using a floor jack (rated 3-ton minimum) at the proper front jacking point.
• Set the vehicle down onto jack stands (rated 3-ton minimum) and give it a gentle shake to confirm it’s stable.

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

• Use a trim clip removal tool and flat-blade screwdriver to remove push clips.
• Use a socket set (metric 8mm-18mm) to remove any bolts holding the shield.
• Set the shield and fasteners aside in a small pile so nothing gets lost.

Step 4: Locate the starter and identify the connections

• Use a work light to find the starter mounted to the transmission bellhousing (where the engine meets the transmission).
• You’ll see:
  • A thick main battery cable on a stud with a nut.
  • A smaller control connector (signal wire) on the starter solenoid.

Step 5: Disconnect the starter wiring

• Use a socket set (metric 8mm-18mm) to remove the nut for the main battery cable from the starter stud, then lift the cable off.
• Use pliers or your fingers to release the locking tab and unplug the small solenoid connector.
• Tip: Don’t pull on wires—pull on connectors.

Step 6: Remove the starter mounting bolts

• Support the starter with one hand.
• Use a ratchet (1/2" drive), extension set (3", 6", 12"), and a wobble socket set (metric) as needed to remove the starter mounting bolts.
• Carefully lower and remove the starter from the vehicle.

Step 7: Install the new starter

• Compare the new starter to the old one (same mounting points and same electrical connections).
• Position the starter in place and hand-thread the mounting bolts to avoid cross-threading.
• Tighten the mounting bolts using a torque wrench (10-150 ft-lbs range) (a torque wrench measures tightening force so bolts aren’t too loose or too tight): Torque to 54 Nm (40 ft-lbs).

Step 8: Reconnect the starter wiring

• Install the main battery cable onto the starter stud and tighten the nut with a socket set (metric 8mm-18mm): Torque to 13 Nm (115 in-lbs).
• Plug in the small solenoid connector until it clicks.
• Make sure wires are routed away from moving parts and hot exhaust.

Step 9: Reinstall the splash shield and lower the vehicle

• Reinstall the splash shield using the trim clip removal tool, flat-blade screwdriver, and socket set (metric 8mm-18mm).
• Lift slightly with the floor jack (rated 3-ton minimum), remove the jack stands (rated 3-ton minimum), then lower the vehicle fully.

Step 10: Reconnect the battery and verify operation

• Reconnect the negative battery terminal and tighten with a 10mm socket: Torque to 5 Nm (44 in-lbs).
• Optional: apply battery terminal anti-corrosion spray to the terminal area.
• Start the engine. It should crank strongly with no clicking or grinding noises.

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✅ After Repair

• 🧪 Start the engine 3-4 times to confirm consistent cranking.
• 🔎 Check underneath for any loose wiring near the starter.
• 📻 Reset the clock/radio presets if they were lost after battery disconnect.

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💰 DIY vs Shop Cost

Shop Cost: $500-$950 (parts + labor)

DIY Cost: $150-$450 (parts only)

You Save: $350-$500 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-3.0 hours.

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🎯 Ready to get started?

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