🔧 Canyon - Radiator Hose Replacement

Replacing a radiator hose means removing the old upper and/or lower coolant hose and installing a new one with good clamps. You do this when a hose is swollen, cracked, leaking at the ends, or feels too soft/hard from age.

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

Assumption: Stock cooling system with Dex-Cool coolant.

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⚠️ Safety & Precautions

• ⚠️ Never open the coolant cap on a hot engine; hot coolant can spray and burn you.
• ⚠️ Support the truck with jack stands; never rely on a floor jack alone.
• ⚠️ Coolant is toxic to people and pets—catch every drop and clean spills.
• ⚠️ Keep hands clear of the fan and belt drive if the engine is running.

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Nitrile gloves
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Drain pan (at least 3-gallon)
• Funnel
• Spill-free coolant funnel kit (specialty)
• 10mm socket
• 3/8" drive ratchet
• 6" extension (3/8" drive)
• Pliers
• Hose clamp pliers (specialty)
• Flathead screwdriver
• Pick tool (small)
• Shop towels
• Flashlight

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Upper radiator hose - Qty: 1
• Lower radiator hose - Qty: 1
• Radiator hose clamps - Qty: 4
• DEX-COOL coolant (premixed 50/50) - Qty: 2 gallons
• Replacement splash shield fasteners - Qty: 1 set

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📋 Before You Begin

• Park on level ground, set the parking brake, and place wheel chocks behind the rear tires.
• Let the engine cool fully (cool to the touch) before opening the cooling system.
• Set your HVAC to Heat and the fan to medium later during bleeding (this helps move coolant through the heater core).
• Place a drain pan under the radiator area before loosening any hoses.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Relieve pressure safely

• Use shop towels and slowly loosen the coolant reservoir cap to release any leftover pressure.
• If you hear hissing, stop and wait until it completely stops.

Step 2: Raise the front (if needed for access)

• Lift the front with a floor jack (rated 3-ton minimum).
• Set it down securely on jack stands (rated 3-ton minimum).

Step 3: Remove the lower splash shield (if equipped)

• Use a 10mm socket with a 3/8" ratchet and 6" extension (3/8" drive) to remove the shield bolts.
• Set bolts aside in a tray so they don’t get lost.

Step 4: Drain enough coolant to get below hose level

• Position the drain pan (at least 3-gallon) under the radiator outlet area.
• If your radiator has a drain valve, open it using pliers (only if needed) and drain 1–2 gallons.
• If there’s no drain valve (or access is poor), you can drain by loosening the lower radiator hose at the radiator end (go slow).
• Tip: Draining less saves time refilling.

Step 5: Remove the old hose clamp(s)

• For spring clamps (squeezable ring style), use hose clamp pliers (specialty) or pliers to compress the clamp and slide it back on the hose.
• For worm-gear clamps (screw style), loosen using a flathead screwdriver.
• Hose clamp pliers lock closed for easy work.

Step 6: Remove the radiator hose

• Twist the hose by hand to break it free, then pull it off.
• If it’s stuck, carefully work around the hose end with a pick tool (small) to break the seal.
• Keep the hose aimed into the drain pan to catch leftover coolant.
• Do not pry hard on the radiator neck (it can crack).

Step 7: Prep the fittings (hose connection necks)

• Use shop towels to wipe the radiator neck and engine fitting clean.
• Remove any crusty buildup so the new hose seals well.

Step 8: Install the new hose

• Slide the new clamps onto the hose first (use pliers if needed).
• Push the new hose fully onto the radiator neck and the engine fitting until it seats past the raised “bead.”
• Position each clamp behind the bead and release/tighten it:
  • Spring clamp: compress with hose clamp pliers (specialty) and place it in the original clamp location.
  • Worm clamp: snug with a flathead screwdriver (firm, not crushing the hose).

Step 9: Reinstall the splash shield

• Reinstall the shield using a 10mm socket, 3/8" ratchet, and 6" extension (3/8" drive).
• Tighten bolts snugly (these are small fasteners; don’t over-tighten).

Step 10: Refill coolant

• Use a funnel or spill-free coolant funnel kit (specialty) to refill the reservoir with DEX-COOL coolant (premixed 50/50).
• Fill to the COLD line.

Step 11: Bleed air from the cooling system

• Start the engine and let it idle.
• Set the HVAC to Heat and the fan to medium.
• Watch the coolant level and add as needed using the spill-free coolant funnel kit (specialty).
• Let it warm up until the temperature gauge reaches normal and you feel steady heat from the vents.
• Shut the engine off, let it cool, then recheck the level and top off to the COLD line.
• Tip: Air pockets can cause overheating.

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✅ After Repair

• Wipe everything dry with shop towels, then look closely for leaks around both hose ends.
• Test drive 10–15 minutes while watching the temperature gauge.
• After the engine fully cools, recheck the reservoir level and top off if needed.
• Dispose of old coolant properly (sealed container; take to a recycling/auto parts center).

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💰 DIY vs Shop Cost

Shop Cost: $250-$550 (parts + labor)

DIY Cost: $60-$180 (parts only)

You Save: $190-$370 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.