🔧 Tucson - Serpentine Belt Replacement

The serpentine belt drives engine accessories like the alternator, A/C compressor, and water pump pulley system on your Tucson. Replacing it is a good DIY job if the belt is cracked, glazed, squealing, or the ribs are worn.

Difficulty Level: Beginner | Estimated Time: 0.5-1 hour

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⚠️ Safety & Precautions

• ⚠️ Work only with the engine completely off and cool.
• ⚠️ Keep fingers, sleeves, and tools away from pulleys and the cooling fan area.
• ⚠️ Disconnecting the battery is not normally required, but remove the key and keep it away from the vehicle.
• ⚠️ Use jack stands if you raise the vehicle. Never rely on a floor jack alone.
• ⚠️ Take a picture of the belt routing before removal so the new belt goes on the same way.

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🔧 Required Tools

You'll need the following tools for this repair:

• 3/8-inch drive ratchet
• 14mm socket
• Serpentine belt tool (specialty)
• Flat-blade screwdriver
• Trim clip removal tool
• Flashlight
• Floor jack (rated 2-ton minimum)
• Jack stands (rated 2-ton minimum)
• Wheel chocks
• Mechanic gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Serpentine drive belt - Qty: 1

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📋 Before You Begin

• Park your Tucson on level ground.
• Shift to Park and apply the parking brake.
• Place wheel chocks behind the rear wheels.
• Let the engine cool for at least 30 minutes.
• Open the hood and use a flashlight to inspect the belt routing.
• Take a clear photo of the belt path around every pulley before removing it.
• A serpentine belt tool is a long, thin handle used to move the spring-loaded belt tensioner in tight spaces.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the Hood and Locate the Belt

• Use the hood prop rod to secure the hood fully open.
• Use a flashlight to locate the serpentine belt on the passenger side of the engine.
• The belt wraps around several pulleys. A pulley is a round wheel the belt rides on.
• Find the belt tensioner. The tensioner is a spring-loaded pulley arm that keeps the belt tight.
• Photo first, remove second.

Step 2: Improve Access if Needed

• If access from above is tight, use the floor jack to raise the front passenger side slightly.
• Place a jack stand under the proper front support point before working near the wheel well.
• Use a trim clip removal tool and flat-blade screwdriver to remove the passenger-side lower splash shield clips if extra access is needed.
• Set the clips aside in a small container so they do not get lost.

Step 3: Release Belt Tension

• Put on safety glasses and mechanic gloves.
• Install the 14mm socket on the 3/8-inch drive ratchet or serpentine belt tool.
• Place the 14mm socket on the belt tensioner hex boss.
• Rotate the tensioner to relieve belt tension. Move slowly because the tensioner is spring-loaded.
• While holding the tensioner released, slide the belt off the easiest smooth pulley first.
• Gently let the tensioner return to its resting position. Do not let it snap back.

Step 4: Remove the Old Belt

• Use your hands to pull the old belt off the remaining pulleys.
• Use the flashlight to follow the belt path as you remove it.
• Compare the old belt to the new serpentine drive belt.
• The new belt should be the same width and very close in length.
• Inspect the old belt for cracks, missing ribs, shiny glazing, or frayed edges.

Step 5: Inspect the Pulleys and Tensioner

• Use your hand to spin each accessible pulley.
• Each pulley should spin smoothly without grinding, wobbling, or rough noise.
• Use the 14mm socket and 3/8-inch drive ratchet to move the tensioner again and check that it moves smoothly.
• If the tensioner feels sticky, weak, noisy, or loose, replace the tensioner before installing the new belt.
• No mounting bolts are normally removed for a belt-only replacement, so no torque spec is required for this procedure.

Step 6: Route the New Belt

• Use your belt routing photo as your guide.
• Route the new serpentine drive belt around all pulleys except one easy-to-reach smooth pulley.
• Make sure the ribbed side of the belt sits in ribbed pulleys.
• Make sure the smooth back side of the belt rides on smooth pulleys.
• Check that every belt rib is seated fully in every pulley groove.
• One rib off can shred the belt.

Step 7: Reinstall Belt Over the Final Pulley

• Use the 14mm socket with the serpentine belt tool or 3/8-inch drive ratchet to rotate the tensioner again.
• Slide the belt over the final pulley while the tensioner is held released.
• Slowly release the tensioner until it tightens the belt.
• Use the flashlight to inspect every pulley one more time.
• Confirm the belt is centered and fully seated on all pulley grooves.

Step 8: Reinstall Splash Shield if Removed

• Use the trim clip removal tool by hand to align the passenger-side splash shield.
• Push the plastic clips back into place by hand.
• Use the flat-blade screwdriver only if a clip needs gentle seating.
• If the vehicle was raised, use the floor jack to lift it slightly, remove the jack stand, and lower it slowly.

Step 9: Start and Check Belt Operation

• Remove all tools from the engine bay.
• Start the engine and let it idle.
• Use the flashlight to watch the belt for 20-30 seconds.
• The belt should run smoothly with no wobble, squeal, slap, or walking off the pulleys.
• Turn the engine off and recheck belt seating after the first short run.

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✅ After Repair

• ✅ Listen for squealing at startup and with the A/C turned on.
• ✅ Recheck the belt visually after your first drive.
• ✅ If the belt tracks toward the edge of a pulley, stop driving and inspect pulley alignment.
• ✅ If noise remains with a new belt, inspect the tensioner, idler pulley, alternator pulley, and A/C compressor pulley.
• ✅ No scan tool reset or infotainment procedure is required for this repair on your Tucson.

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💰 DIY vs Shop Cost

Shop Cost: $140-$260 (parts + labor)

DIY Cost: $25-$60 (parts only)

You Save: $115-$200 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 hour.

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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.