🔧 CR-V - Serpentine Belt Replacement

The serpentine belt (drive belt) runs your alternator, A/C, and other accessories. On your CR-V, you release the automatic belt tensioner, slip the old belt off, then route and install the new belt correctly.

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

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⚠️ Safety & Precautions

• ⚠️ Keep hands/clothes away from pulleys; never work with engine running.
• ⚠️ Work on a cool engine; hot parts can burn you.
• ⚠️ Support the CR-V with jack stands; never rely on a floor jack alone.
• ⚠️ If you remove the wheel, re-torque lug nuts properly.

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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
• 19mm socket
• 1/2" drive breaker bar
• 14mm socket
• 3/8" drive ratchet
• 6" socket extension
• Phillips screwdriver
• Trim clip removal tool
• Flashlight
• Mechanic gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Serpentine belt (accessory drive belt) - Qty: 1

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📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Chock the rear wheels using wheel chocks.
• Take a quick photo of belt routing first.
• Optional (for extra safety): disconnect the negative battery cable using a 10mm socket. If you do this, add a 10mm socket to your tools.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise the front-right corner (for access)

• Place the floor jack (rated 3-ton minimum) under the proper front jacking point and lift the vehicle.
• Set the CR-V securely onto jack stands (rated 3-ton minimum).

Step 2: Remove the front-right wheel

• Use a 19mm socket with a 1/2" drive breaker bar to loosen the lug nuts, then remove them and take the wheel off.
• Set the wheel under the vehicle as an extra safety backup.

Step 3: Remove the right-side splash shield (inner fender)

• Use a Phillips screwdriver and trim clip removal tool to remove the clips/screws holding the splash shield.
• Pull the shield back enough to clearly see the belt and pulleys.
• A flashlight makes routing much easier.

Step 4: Locate the belt tensioner

• Look for the automatic tensioner (a spring-loaded arm with a pulley).
• The point you turn is the hex on the tensioner arm.
• A breaker bar is a long handle that gives extra leverage.

Step 5: Release belt tension

• Put a 14mm socket on the tensioner hex, attached to a 1/2" drive breaker bar (or a 3/8" drive ratchet if you have enough leverage).
• Rotate the tensioner to take tension off the belt (you’ll feel the spring resist).
• While holding the tensioner released, slide the belt off the easiest-to-reach pulley (usually a smooth idler or the alternator pulley).
• Slowly let the tensioner return to rest. Don’t let it snap back.

Step 6: Remove the old belt

• Pull the belt out through the wheel well opening.
• Use a flashlight to inspect pulleys for wobble or roughness as you spin them by hand.
• Rough or noisy pulleys should be addressed soon.

Step 7: Route the new belt

• Compare the new belt to the old one for length and rib count.
• Route the belt around the pulleys to match the under-hood belt routing diagram. If the sticker is missing, use your photo from earlier.
• Make sure the ribbed side sits in ribbed pulleys and the smooth side rides on smooth pulleys.
• Use a flashlight to confirm the belt is centered in every pulley groove.

Step 8: Apply tension and seat the belt

• Use the 14mm socket and 1/2" drive breaker bar to rotate the tensioner again.
• Slip the belt fully onto the last pulley.
• Slowly release the tensioner so it tensions the belt.
• Re-check every pulley: the belt must be fully seated in the grooves (no ribs hanging off).

Step 9: Reinstall the splash shield and wheel

• Reinstall the splash shield using the trim clip removal tool and Phillips screwdriver.
• Install the wheel and hand-thread lug nuts.
• Lower the vehicle using the floor jack (rated 3-ton minimum), then torque lug nuts in a star pattern using a 19mm socket and torque wrench.
• Torque to 108 Nm (80 ft-lbs)

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✅ After Repair

• Before starting, do one last visual check that the belt is properly seated on all pulleys.
• Start the engine and watch the belt for 20-30 seconds. It should run smoothly with no hopping or squealing.
• Turn A/C on and headlights on; listen for noise changes.
• If you hear squealing, shut off the engine and re-check routing and pulley seating.

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💰 DIY vs Shop Cost

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

DIY Cost: $25-$70 (parts only)

You Save: $110-$300 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.8-1.3 hours.

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🎯 Ready to get started?

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