🔧 Serpentine Belt - Replacement

The serpentine belt drives the alternator, A/C compressor, and other accessories. If it is cracked, noisy, or glazed, replace it before it fails and leaves you stranded.

Difficulty Level: Beginner | Estimated Time: 1-2 hours

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⚠️ Safety & Precautions

• Work with the engine completely off and cool.
• Keep fingers, tools, and clothing away from the belt path and pulleys.
• Do not start the engine with the belt removed.
• No battery disconnect is required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• 3/8-inch drive ratchet
• 14mm socket
• Breaker bar
• Flashlight
• Safety glasses
• Gloves
• Jack stands
• Floor jack (rated 3-ton minimum)
• Wheel chocks

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Serpentine belt - Qty: 1

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📋 Before You Begin

• Park on a flat surface and set the parking brake.
• Let the engine cool completely.
• Chock the rear wheels.
• Raise the front of the vehicle if needed for access and support it securely on jack stands.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Locate the belt and tensioner

• Open the hood and find the serpentine belt on the front of the engine.
• Look for the automatic belt tensioner near the belt path.
• Take a quick photo first.

Step 2: Release belt tension

• Use a 14mm socket and breaker bar on the belt tensioner bolt.
• Rotate the tensioner to relieve belt tension.
• Keep steady pressure so the tensioner does not snap back.

Step 3: Remove the old belt

• Slip the belt off one easy-to-reach pulley first.
• Slowly release the tensioner with the breaker bar.
• Remove the belt from the remaining pulleys and take it out of the engine bay.

Step 4: Route the new belt

• Compare the new belt to the old one before installing.
• Route the new belt around all pulleys except the easiest final pulley.
• Make sure the belt ribs sit fully in every grooved pulley.
• Check the routing diagram if present.

Step 5: Install the belt on the last pulley

• Use the 14mm socket and breaker bar to move the tensioner again.
• Slide the belt onto the final pulley while holding tension off the belt.
• Slowly release the tensioner and verify the belt is seated correctly.

Step 6: Verify installation

• Inspect every pulley to confirm the belt is centered and fully seated.
• Make sure the belt is not twisted.
• Spin each accessible pulley by hand only if safe and easy to reach.

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✅ After Repair

• Start the engine and listen for squealing, chirping, or rubbing sounds.
• Watch the belt for a few seconds to confirm it runs straight.
• Turn on the A/C and headlights to confirm accessory operation.
• If the belt tracks off-center, shut the engine off and recheck routing.

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💰 DIY vs Shop Cost

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

DIY Cost: $35-$80 (parts only)

You Save: $105-$180 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.8-1.2 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.