How to Replace the Water Pump on a 2019 GMC Canyon (Step-by-Step DIY Guide)
Tools, parts list, safety tips, coolant refill/bleeding steps, and OEM torque spec guidance for 2017, 2018, 2019, 2020, 2021, 2022
How to Replace the Water Pump on a 2019 GMC Canyon (Step-by-Step DIY Guide)
Tools, parts list, safety tips, coolant refill/bleeding steps, and OEM torque spec guidance for 2017, 2018, 2019, 2020, 2021, 2022
🔧 Canyon - Water Pump Replacement
The water pump circulates coolant through your engine and radiator. When it leaks or the bearing fails, you can get overheating, coolant loss, or a squealing/grinding noise.
Difficulty Level: Advanced | Estimated Time: 3-6 hours
⚠️ Safety & Precautions
- ⚠️ Never open the coolant cap on a hot engine; let it cool fully.
- ⚠️ Use jack stands; never rely on a floor jack alone.
- ⚠️ Keep hands clear of the belt path when checking operation.
- ⚠️ Dispose of coolant properly; it’s toxic to pets.
- Disconnecting the battery is recommended if you’ll unplug electrical connectors near the belt area.
🔧 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
- Safety glasses
- Nitrile gloves
- Drain pan (at least 3 gallons)
- Funnel
- Metric socket set (8mm, 10mm, 13mm, 15mm)
- Metric combination wrench set (10mm, 13mm, 15mm)
- 3/8" drive ratchet
- 3/8" drive extensions (3" and 6")
- Torque wrench (3/8" drive, 10-100 ft-lbs range)
- Serpentine belt tool (specialty)
- Trim clip remover
- Flat-blade screwdriver
- Hose clamp pliers
- Plastic gasket scraper
- Shop rags
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Water pump - Qty: 1
- Water pump gasket/seal - Qty: 1
- Engine coolant (Dex-Cool compatible) - Qty: 2-3 gallons (mixed as directed)
- Serpentine belt - Qty: 1 (recommended if cracked/glazed)
- Hose clamps - Qty: 1-2 (only if originals are weak/damaged)
📋 Before You Begin
- Park on level ground, set the parking brake, and chock the rear wheels.
- Let the engine cool completely (ideally overnight).
- Raise the front end with a floor jack and support with jack stands under the frame.
- If you’ll be working near the alternator wiring or unplugging sensors, disconnect the negative battery cable using a 10mm socket.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Remove the lower splash shield (if equipped)
- Use a trim clip remover and 10mm socket to remove the fasteners and drop the shield.
- Set fasteners aside by location so they go back in the same spots.
Step 2: Drain the coolant
- Place a drain pan under the radiator drain area.
- Slowly loosen the surge tank cap to relieve any residual pressure.
- Open the drain (or remove the lower radiator hose clamp) using hose clamp pliers and drain coolant fully.
Step 3: Remove the air intake ducting for access
- Use a flat-blade screwdriver (or 8mm socket, depending on clamp style) to loosen the intake clamps.
- Unclip/remove the duct and set it aside.
Step 4: Remove the serpentine belt
- Take a photo of the belt routing before removal.
- Use a serpentine belt tool (specialty) with the correct socket to rotate the belt tensioner and slip the belt off.
- Tip: Release tension slowly to avoid snapping back.
Step 5: Disconnect hoses/lines at the water pump
- Place shop rags under the connection points.
- Use hose clamp pliers to release clamps and twist hoses gently to break them free.
- If a hose is stuck, use a flat-blade screwdriver carefully at the very edge to help release it (don’t gouge the sealing surface).
Step 6: Remove the water pump
- Remove the water pump mounting bolts using a 10mm socket and 3/8" drive ratchet with extensions as needed.
- Pull the pump straight off. Keep track of bolt locations if different lengths are used.
- Expect some coolant spill; keep the drain pan positioned.
Step 7: Clean the sealing surface
- Use a plastic gasket scraper to remove old gasket material.
- Wipe the surface with shop rags until clean and dry.
- Tip: Don’t use metal scrapers on aluminum.
Step 8: Install the new water pump and gasket
- Install the new gasket/seal onto the pump as designed (dry unless the gasket instructions say otherwise).
- Position the pump and start all bolts by hand to prevent cross-threading.
- Tighten evenly in a crisscross pattern using a 10mm socket.
- Use a torque wrench to tighten the water pump bolts to the OEM specification for your engine configuration. Torque to OEM spec.
Step 9: Reconnect hoses and reinstall the belt
- Reinstall hoses and clamps using hose clamp pliers.
- Route the belt per your photo and rotate the tensioner using the serpentine belt tool (specialty) to slip the belt on.
- Visually confirm the belt is seated in every pulley groove.
Step 10: Reinstall splash shield and lower the truck
- Reinstall the shield using a 10mm socket and trim clip remover.
- Lower the truck safely from the jack stands using the floor jack.
Step 11: Refill and bleed the cooling system
- Refill with Dex-Cool compatible coolant using a funnel at the surge tank.
- Start the engine and set the heater to MAX heat.
- Let it idle and watch temperature; add coolant as the level drops.
- Shut down, let it cool, then recheck and top off to the correct level.
✅ After Repair
- Check for leaks around the pump and hose connections with the engine running.
- Verify the heater blows hot air (a quick check that coolant is circulating).
- Test drive 10-15 minutes, then recheck coolant level after a full cool-down.
- If you ever see overheating or repeated coolant loss, stop driving and recheck for trapped air or a leak.
💰 DIY vs Shop Cost
Shop Cost: $750-$1,200 (parts + labor)
DIY Cost: $180-$420 (parts only)
You Save: $330-$1,020 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 3-5 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.


















