🔧 Traverse - Serpentine Belt Replacement

The serpentine belt drives key accessories like the alternator and A/C. If it’s cracked, noisy, or slipping, replacing it prevents breakdowns and charging/overheating issues.

Difficulty Level: Intermediate | Estimated Time: 0.8-1.5 hours

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⚠️ Safety & Precautions

• 🛑 Work on a cool engine; the belt area gets very hot.
• 🛑 Support the Traverse on jack stands; never rely on a floor jack alone.
• 🛑 Keep fingers and tools clear of pulleys; the tensioner can snap back hard.
• 🛑 If you remove the right front wheel, set the parking brake and chock the rear wheels.

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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
• 22mm socket
• 1/2" drive breaker bar
• 1/2" drive ratchet
• 15mm socket
• 7mm socket
• 10mm socket
• Trim clip removal tool
• Torque wrench (20-250 Nm range)
• Work light
• Mechanic gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Serpentine belt - Qty: 1
• Fender liner push clips - Qty: 5-10

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📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Chock the rear wheels with wheel chocks.
• Open the hood and look for the belt routing diagram (often on a sticker near the radiator support). If you don’t see one, take a clear photo of the current routing before removal.
• A breaker bar is a long handle for extra leverage.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the right front wheel (for access)

• Use a 22mm socket and 1/2" drive breaker bar to loosen the lug nuts slightly while the wheel is on the ground.
• Lift the right-front with a floor jack (rated 3-ton minimum) and support the vehicle with jack stands (rated 3-ton minimum).
• Remove the lug nuts with a 22mm socket and 1/2" drive ratchet, then remove the wheel.

Step 2: Remove the right front splash shield / fender liner section

• Use a trim clip removal tool to pop out plastic push-clips.
• Use a 7mm socket and 10mm socket to remove any small bolts/screws holding the liner and splash shield.
• Pull the liner back enough to see the belt and tensioner clearly.

Step 3: Relieve belt tension

• Install a 15mm socket on the belt tensioner bolt and use a 1/2" drive breaker bar to rotate the tensioner to relieve tension.
• While holding the tensioner rotated, slide the belt off one easy pulley (usually the alternator pulley) with your free hand.
• Slowly let the tensioner return to its resting position. Don’t let it snap back.

Step 4: Remove the old belt

• Pull the belt out through the wheel well opening.
• Use a work light to inspect pulleys for wobble, damage, or heavy rust.
• Spin each pulley by hand; it should feel smooth and quiet.

Step 5: Route the new belt correctly

• Match the new belt to the old belt length and rib count before installing.
• Route the belt using the under-hood routing diagram (or your photo).
• Make sure the belt ribs sit fully inside the grooved pulleys and the smooth side rides on smooth pulleys.
• One rib off will shred the belt.

Step 6: Apply tension and seat the belt

• Use the 15mm socket and 1/2" drive breaker bar to rotate the tensioner again.
• Slip the belt onto the last pulley, then slowly release the tensioner.
• Double-check belt alignment on every pulley with a work light.

Step 7: Reinstall splash shield / liner and wheel

• Reinstall the fender liner/splash shield using the 7mm socket, 10mm socket, and trim clip removal tool (to reinstall clips).
• Reinstall the wheel and hand-thread lug nuts.
• Lower the Traverse, then torque lug nuts in a star pattern using a torque wrench (20-250 Nm range): Torque to 190 Nm (140 ft-lbs).

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✅ After Repair

• Start the engine and watch the belt for 30-60 seconds. It should run centered and smooth (no hopping).
• Listen for squealing or ticking (often a misaligned belt rib).
• Turn A/C on and headlights on; confirm no belt slip noise under load.
• After a short test drive, recheck the belt visually through the wheel well area.

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💰 DIY vs Shop Cost

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

DIY Cost: $35-$90 (parts only)

You Save: $145-$260 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.8-1.5 hours.

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🎯 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.