🔧 HR-V - Serpentine Belt Replacement

The serpentine belt on your HR-V drives accessories like the alternator and A/C. Replacing it involves relieving the automatic belt tensioner, removing the old belt, and routing the new belt correctly.

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

---

⚠️ Safety & Precautions

• ⚠️ Work on a cool engine; hot parts can burn you.
• ⚠️ Keep fingers/tools clear of pulleys; the tensioner snaps back hard.
• ⚠️ Support the vehicle with jack stands if you lift it; never rely on a jack alone.
• ⚠️ Do not start the engine with the belt off.
• Battery disconnect is not required for this job, but keep tools away from the battery positive terminal.

---

🔧 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
• 3/8" drive extension set
• Trim clip removal tool
• Phillips screwdriver
• Flashlight
• Torque wrench (10-150 ft-lbs range)
• Mechanic gloves
• Safety glasses

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Serpentine belt (accessory drive belt) - Qty: 1
• Plastic splash shield clips - Qty: 4-10

---

📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Chock the rear wheels using wheel chocks.
• Open the hood and locate the belt routing diagram (usually on a sticker near the radiator support). If it’s missing, take a clear photo of the current routing before removal.
• If access is tight from above, plan to remove the right-front wheel and lower splash shield for side access.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

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

• Break the right-front lug nuts loose using a 19mm socket and 1/2" drive breaker bar.
• Lift the right-front using a floor jack (rated 3-ton minimum) at the proper jacking point.
• Set the vehicle securely on jack stands (rated 3-ton minimum).
• Remove the wheel using a 19mm socket.

Step 2: Remove the right-side lower splash shield (if equipped)

• Remove clips/screws using a trim clip removal tool and Phillips screwdriver.
• Pull the shield back enough to see the crank pulley and belt path.
• Tip: Expect some clips to break.

Step 3: Locate the automatic belt tensioner

• Use a flashlight to find the spring-loaded tensioner assembly.
• The tensioner has a hex feature for a tool; this is what you rotate to release belt tension.
• Tip: Take a photo of belt routing now.

Step 4: Relieve belt tension

• Install a 14mm socket on the tensioner hex using a 3/8" drive ratchet and 3/8" drive extension set as needed.
• Rotate the tensioner smoothly to release tension. (It will feel strong—this is normal.)
• While holding the tensioner, slide the belt off the easiest-to-reach smooth pulley using your free hand.
• Slowly return the tensioner back to its resting position—do not let it snap back.

Step 5: Remove the old belt

• Pull the belt out of the engine bay/wheel well area by hand.
• Spin each pulley by hand to check for roughness or wobble.
• If any pulley is noisy/rough, stop and tell me which one—there may be an idler/tensioner or accessory issue.

Step 6: Route the new belt

• Match the new belt to the old belt length and rib count before installing.
• Route the belt exactly per the under-hood routing diagram.
• Make sure the belt ribs sit fully in the grooved pulleys (no ribs riding on the edge).

Step 7: Apply tension and seat the belt

• Rotate the tensioner again using the 14mm socket, 3/8" drive ratchet, and 3/8" drive extension set.
• Slip the belt onto the last pulley, then slowly release the tensioner.
• Double-check every pulley: the belt should be centered and fully seated.

Step 8: Reinstall splash shield and wheel

• Reinstall the splash shield using the trim clip removal tool and Phillips screwdriver.
• Reinstall the wheel using a 19mm socket.
• Lower the vehicle carefully using the floor jack (rated 3-ton minimum).
• Tighten lug nuts in a star pattern using a torque wrench (10-150 ft-lbs range): Torque to 108 Nm (80 ft-lbs).

---

✅ After Repair

• Before starting, do a final visual check that the belt is on every pulley correctly.
• Start the engine and watch the belt for 15-30 seconds—no wobble, no squeal, no walking off a pulley.
• Turn A/C on and headlights on briefly to add load; listen for squeaks.
• If you hear chirping/squealing, shut it off and re-check belt seating and pulley condition.

---

💰 DIY vs Shop Cost

Shop Cost: $180-$320 (parts + labor)

DIY Cost: $35-$85 (parts only)

You Save: $145-$235 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.

---

🎯 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.