🔧 Renegade - Serpentine Belt Replacement

The serpentine belt drives key accessories like the alternator and A/C. On your Renegade, the easiest access is typically through the right-front wheel well so you can safely release the automatic belt tensioner and swap the belt.

Difficulty Level: Intermediate | Estimated Time: 1.0-2.0 hours

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⚠️ Safety & Precautions

• 🛑 Work on a cool engine; the belt area can burn you.
• 🛑 Support the vehicle with jack stands; never rely on a jack alone.
• 🛑 Keep fingers and tools out of pinch points when releasing the tensioner (it’s spring-loaded).
• 🛑 Keep the key out of the vehicle so nobody can crank the engine.
• 🛑 Battery disconnect is not required, but avoid shorting the alternator wiring with tools.

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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
• 1/2" drive ratchet
• 3" socket extension
• 15mm combination wrench
• Serpentine belt tool (specialty)
• Torx T25 driver
• Torx T30 driver
• 10mm socket
• 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 - Qty: 1

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📋 Before You Begin

• Park on level ground, select 1st gear, and set the parking brake.
• Chock the rear wheels using wheel chocks.
• Open the hood and locate the belt routing diagram (often on the radiator support/under-hood area). If it’s missing, take a clear photo of the current routing before removal.
• Tip: A quick phone photo saves headaches.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise the right-front corner

• Use floor jack (rated 3-ton minimum) to lift the right-front jacking point.
• Set the vehicle securely on jack stands (rated 3-ton minimum).
• Remove the right-front wheel using a 19mm socket and 1/2" drive breaker bar.
• When reinstalling later: Torque to 135 Nm (100 ft-lbs) using a torque-capable ratchet/torque wrench setup.

Step 2: Remove the right-front inner fender/splash shield section

• Use a Torx T25 driver / Torx T30 driver to remove the visible screws holding the front portion of the liner.
• Use a trim clip removal tool to pop out any plastic push-clips.
• If a small bracket/fastener uses hex heads, remove it with a 10mm socket.
• Pull the liner back enough to clearly see the belt, pulleys, and tensioner. Use a flashlight.

Step 3: Confirm belt routing

• Compare what you see to the under-hood routing diagram.
• If the diagram is missing, draw a simple sketch or take a second photo from the wheel well.

Step 4: Release belt tension

• Find the automatic belt tensioner (a spring-loaded arm with a pulley).
• Place a 15mm combination wrench on the tensioner’s hex boss.
• Rotate the wrench to relieve tension (it will feel strong). Keep steady pressure.
• If space is tight, use a serpentine belt tool (specialty) (a long, thin handle made for tight belt tensioners).

Step 5: Remove the old belt

• While holding the tensioner released with the 15mm combination wrench, slip the belt off the easiest-to-reach smooth pulley (often the alternator or an idler).
• Slowly let the tensioner return to its resting position. Don’t let it snap back.
• Pull the belt out through the wheel-well opening.

Step 6: Inspect pulleys and tensioner before installing the new belt

• Spin each pulley by hand (engine off). It should turn smoothly and quietly.
• Check for wobble, roughness, or grinding noises. If you feel any of those, stop—there may be a bad pulley, idler, or tensioner.
• Tip: A bad pulley can ruin a new belt fast.

Step 7: Route the new belt

• Route the new belt around the pulleys exactly like the routing diagram/photo.
• Make sure the ribbed side sits fully in the grooves of ribbed pulleys (no ribs hanging off the edge).
• Leave one easy pulley for last (the one you’ll slip the belt onto after releasing tension).

Step 8: Apply tension and seat the belt

• Rotate the tensioner again using the 15mm combination wrench (or serpentine belt tool (specialty)).
• Slip the belt onto the last pulley.
• Slowly release the tensioner back onto the belt.
• Double-check belt alignment on every pulley using a flashlight.

Step 9: Reinstall the fender liner and wheel

• Reposition the liner and reinstall fasteners using Torx T25 driver, Torx T30 driver, and 10mm socket as removed.
• Reinstall the wheel using a 19mm socket and 1/2" drive ratchet.
• Lower the vehicle with the floor jack (rated 3-ton minimum).
• Tighten lug nuts in a star pattern: Torque to 135 Nm (100 ft-lbs).

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✅ After Repair

• Start the engine and let it idle for 30–60 seconds while watching the belt.
• Listen for squealing, chirping, or slapping sounds; shut off immediately if you hear anything abnormal.
• Recheck belt tracking: it should run centered on each pulley.
• After a short drive, do a quick recheck through the wheel well for proper seating.

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💰 DIY vs Shop Cost

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

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

You Save: $110-$325 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-2.0 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.