🔧 Serpentine Belt - Replacement

Your HR-V uses one serpentine belt to drive engine accessories like the alternator and A/C compressor. Replacing it is a good beginner-friendly job if the belt is cracked, glazed, squealing, or worn.

Difficulty Level: Beginner | Estimated Time: 30-60 minutes

---

⚠️ Safety & Precautions

• ⚠️ Work with the engine completely off and cool.
• ⚠️ Keep fingers away from pulleys and the belt tensioner while releasing tension.
• ⚠️ Do not start the engine until the belt is fully seated in every pulley groove.
• ⚠️ Disconnecting the battery is not normally required for this job, but keep the key away from the vehicle while working.

---

🔧 Required Tools

You'll need the following tools for this repair:

• 14mm box-end wrench
• 3/8-inch drive serpentine belt tool (specialty)
• 10mm socket
• 3/8-inch ratchet
• Plastic trim clip remover
• Flashlight
• Safety glasses
• Nitrile gloves

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Serpentine drive belt - Qty: 1

---

📋 Before You Begin

• 🅿️ Park your HR-V on level ground, shift to Park, and set the parking brake.
• 🧊 Let the engine cool completely before reaching into the belt area.
• 🔦 Open the hood and use a flashlight to study the belt path before removing it.
• 📸 Take a clear photo of the belt routing. This makes reinstalling the new belt much easier.
• 📌 A serpentine belt is the long rubber belt that wraps around several pulleys on the front/passenger side of the engine.
• 📌 The belt tensioner is a spring-loaded arm that keeps the belt tight.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Locate the Belt and Tensioner

• Use a flashlight to look down at the passenger side of the engine bay.
• Find the serpentine belt wrapped around the crankshaft pulley, alternator, A/C compressor, water pump, and tensioner/idler pulleys.
• Find the belt tensioner. It has a 14mm hex area for a wrench.
• Take a routing photo first.

Step 2: Improve Access if Needed

• Use a 10mm socket and 3/8-inch ratchet to remove any small upper access brackets or covers blocking your hand path.
• If lower access is needed, use a plastic trim clip remover to loosen the passenger-side splash shield clips.
• Do not remove parts that are not blocking belt access.

Step 3: Release Belt Tension

• Place a 14mm box-end wrench or 3/8-inch drive serpentine belt tool on the tensioner.
• Slowly rotate the tensioner to release pressure from the belt.
• A serpentine belt tool is a long, thin handle that gives extra reach in tight spaces.
• Hold the tensioner steady while you slide the belt off the easiest smooth pulley.
• Slowly let the tensioner return to its resting position.
• Do not let it snap back.

Step 4: Remove the Old Belt

• Use your hands with nitrile gloves to pull the old belt out from around each pulley.
• Compare the old belt to the new serpentine drive belt.
• The new belt should be the same width and very close in length.

Step 5: Inspect the Pulleys

• Use a flashlight to inspect each pulley before installing the new belt.
• Spin the smooth idler pulley by hand if accessible. It should feel smooth, not gritty or loose.
• Look for oil leaks, coolant leaks, or pulley damage.
• If a pulley wobbles or feels rough, replace that part before installing the new belt.

Step 6: Route the New Belt

• Use your routing photo to position the new belt around the pulleys.
• Make sure the ribbed side of the belt sits on ribbed pulleys.
• Make sure the smooth side of the belt sits on smooth pulleys.
• Leave the easiest smooth pulley for last.
• Start at the crank pulley.

Step 7: Slip the Belt Over the Final Pulley

• Use the 14mm box-end wrench or 3/8-inch drive serpentine belt tool to rotate the tensioner again.
• Slide the belt over the final smooth pulley.
• Slowly release the tensioner until it applies pressure to the belt.
• Remove the wrench or serpentine belt tool.

Step 8: Check Belt Alignment

• Use a flashlight to check every pulley.
• Confirm the belt ribs are fully seated inside every grooved pulley.
• Confirm the belt is centered on every smooth pulley.
• If the belt is one rib off, release tension again and correct it before starting the engine.

Step 9: Reinstall Any Removed Covers

• Use a plastic trim clip remover to reinstall any splash shield clips you loosened.
• Use a 10mm socket and 3/8-inch ratchet to reinstall any access brackets or covers you removed.
• Snug small 10mm bolts by hand. Do not overtighten plastic covers.

Step 10: Start and Observe

• Start the engine and let it idle.
• Use a flashlight from a safe distance to watch the belt track smoothly.
• Turn the steering wheel lightly and switch the A/C on to load the belt-driven accessories.
• Shut the engine off if you hear squealing, slapping, or see belt wobble.

---

✅ After Repair

• ✅ Recheck the belt after the first short drive.
• ✅ Look for frayed edges, wandering, chirping, or squealing.
• ✅ If the new belt squeals, inspect the tensioner and pulleys for wear.
• ✅ No scan tool, battery registration, or infotainment reset is required for this repair.

---

💰 DIY vs Shop Cost

Shop Cost: $120-$230 parts + labor

DIY Cost: $25-$60 parts only

You Save: $95-$170 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.3-0.6 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.