How to Replace the Serpentine Belt on a 2019 GMC Canyon (Step-by-Step Guide)
Tools, belt routing tips, safety precautions, and final alignment checks to prevent squeal and mis-tracking for 2017, 2018, 2019, 2020, 2021, 2022
How to Replace the Serpentine Belt on a 2019 GMC Canyon (Step-by-Step Guide)
Tools, belt routing tips, safety precautions, and final alignment checks to prevent squeal and mis-tracking for 2017, 2018, 2019, 2020, 2021, 2022
đź”§ Canyon - Serpentine Belt Replacement
The serpentine belt drives accessories like the alternator, A/C compressor, and power steering (if equipped). Replacement is mainly about safely relieving the spring tension, swapping the belt, then confirming the belt is routed correctly on every pulley.
Difficulty Level: Beginner | Estimated Time: 0.5-1.0 hours
⚠️ Safety & Precautions
- ⚠️ Work on a cool engine; keep hands away from the fan and pulleys.
- ⚠️ Remove keys from the vehicle so nobody can start it.
- ⚠️ Do not put fingers between the belt and pulleys while releasing tension.
- ⚠️ If the belt is shredded, check for debris around pulleys before restarting.
- 🔋 Battery disconnect is not required for this job, but keep tools away from the positive terminal.
đź”§ Required Tools
You'll need the following tools for this repair:
- Safety glasses
- Mechanic gloves
- Flashlight
- 3/8" drive ratchet
- 3/8" drive breaker bar
- 15mm socket
- Torque wrench (10-100 ft-lbs range)
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Serpentine belt - Qty: 1
đź“‹ Before You Begin
- Park on level ground, shift to Park, and set the parking brake.
- Open the hood and let the engine fully cool.
- Find the belt routing diagram (usually a sticker in the engine bay). If it’s missing, take a clear photo of the current routing before removal.
- Know what you’re moving: the belt tensioner is a spring-loaded pulley assembly 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 locate the serpentine belt on the front of the engine.
- Identify the belt tensioner pulley (it’s the pulley attached to a spring-loaded arm).
Step 2: Relieve belt tension
- Install a 15mm socket on the tensioner’s hex (or use the tensioner’s square drive if yours has one) with a 3/8" drive breaker bar.
- Slowly rotate the tensioner to release tension. Move it smoothly—don’t let it snap back.
- While holding tension off, slide the belt off the easiest-to-reach smooth pulley using your gloved hand.
Step 3: Remove the old belt
- Let the tensioner return to rest slowly using the 3/8" drive breaker bar.
- Remove the belt from the remaining pulleys by hand.
- Compare old vs new belt length and rib count before installing.
Step 4: Route the new belt
- Route the new belt exactly like the underhood diagram (or your photo).
- Make sure the ribbed side sits fully in the grooves of every ribbed pulley.
- Leave the easiest-to-reach pulley for last (this makes the final install easier).
Step 5: Re-apply tension and seat the belt
- Use the 15mm socket and 3/8" drive breaker bar to rotate the tensioner again.
- Slip the belt onto the last pulley.
- Slowly release the tensioner so it tightens the belt.
Step 6: Final alignment check
- Use a flashlight to check every pulley: the belt must be centered and fully seated in the grooves.
- If you removed any components for access (varies by setup), reinstall and Torque to the factory spec using a torque wrench.
âś… After Repair
- Start the engine and watch the belt for 20-30 seconds (keep hands and tools clear).
- Listen for chirping/squealing. If you hear it, shut off the engine and re-check that the belt is fully seated on every pulley.
- Recheck belt tracking again after a short 5-minute drive.
đź’° DIY vs Shop Cost
Shop Cost: $150-$250 (parts + labor)
DIY Cost: $30-$70 (parts only)
You Save: $80-$220 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.5-1.0 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.


















