🔧 Acadia - Radiator Hose Replacement

Replacing a radiator hose stops coolant leaks and prevents overheating. You’ll remove the old hose, install the new one with secure clamps, then refill/bleed the cooling system so no air pockets remain.

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

Assumption: steps apply to either upper or lower radiator hose.

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⚠️ Safety & Precautions

• ⚠️ Never open the coolant cap on a hot engine; hot coolant can spray and burn.
• ⚠️ Support the SUV with jack stands; never rely on a jack alone.
• ⚠️ Keep coolant off belts and electrical connectors; wipe spills immediately.
• ⚠️ Coolant is toxic—use a drain pan and keep it away from kids/pets.
• ⚠️ Battery disconnect is not required for this job.

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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)
• Hose clamp pliers (specialty)
• Pick tool
• Flathead screwdriver
• 8mm socket
• 10mm socket
• 3/8" drive ratchet
• 3/8" drive extension (6")
• Torque wrench (3/8" drive)
• Funnel
• Shop towels

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Radiator hose (upper or lower, as needed) - Qty: 1
• Hose clamps (correct size for the hose) - Qty: 2
• Dex-Cool coolant (50/50 premix) - Qty: 1-2 gallons

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📋 Before You Begin

• Park on level ground, set the parking brake, and place wheel chocks behind the rear wheels.
• Let the engine cool completely (ideally several hours).
• Put on safety glasses and nitrile gloves.
• Position a drain pan under the radiator area before loosening anything.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Raise the front (if you’re doing the lower hose)

• Use a floor jack (rated 3-ton minimum) to lift the front at the approved lift point.
• Set the vehicle onto jack stands (rated 3-ton minimum) and give it a firm shake test.

Step 2: Relieve any leftover pressure

• Place a shop towel over the coolant surge tank cap.
• Slowly loosen the cap by hand to release any pressure, then remove it fully.

Step 3: Drain coolant to below hose level

• Position the drain pan (at least 3-gallon) under the radiator.
• Open the radiator drain (if accessible) by turning it carefully using a flathead screwdriver.
• If the drain isn’t accessible, you can drain by loosening the lower hose clamp in Step 5 and letting coolant flow into the pan.

Step 4: Remove any covers blocking access

• Remove any upper engine cover/air ducting in the way using an 8mm socket, 10mm socket, 3/8" drive ratchet, and 3/8" drive extension (6").
• Set fasteners aside where they won’t get lost.

Step 5: Release the hose clamps

• Use hose clamp pliers (specialty) to squeeze the clamp tabs and slide the clamp back several inches on the hose.
• Clamp pliers lock the clamp open for you.
• If you have screw-type clamps instead, loosen them with a flathead screwdriver.

Step 6: Remove the old hose

• Twist the hose by hand to break it free from the fitting.
• If it’s stuck, gently work around the edge with a pick tool to break the seal.
• Don’t pry hard—plastic fittings crack easily.
• Pull the hose off and let remaining coolant drain into the drain pan.

Step 7: Inspect and clean the fittings

• Wipe the radiator neck and engine-side neck with shop towels.
• Check for cracks, deep corrosion, or a broken hose bead (the raised lip that holds the clamp). If damaged, don’t force the new hose on.

Step 8: Install the new hose and clamps

• Slide the new clamps onto the new hose before installing the hose.
• Push the hose fully onto each fitting until it bottoms out.
• Use hose clamp pliers (specialty) to position spring clamps directly over the fitting’s bead (raised lip).
• If using screw clamps, tighten with a flathead screwdriver until snug (do not crush the hose).

Step 9: Reinstall anything you removed

• Reinstall ducts/covers using an 8mm socket and 10mm socket with a 3/8" drive ratchet.
• If you removed any small bracket bolts, tighten with a torque wrench (3/8" drive) to Torque to 10 Nm (89 in-lbs) unless the bolt size/label indicates otherwise.

Step 10: Refill coolant

• Close the radiator drain (if used) by hand, then snug carefully with a flathead screwdriver.
• Use a funnel to fill the surge tank with Dex-Cool coolant (50/50 premix) to the COLD line.

Step 11: Bleed air from the cooling system

• Start the engine and set the HVAC to full HOT (this opens coolant flow through the heater core).
• Let the engine idle while watching the coolant level; add coolant using a funnel as the level drops.
• When the engine reaches operating temperature, you should feel the radiator hose get hot (thermostat opened).
• Shut the engine off, let it cool, then recheck and top off to the COLD line.

Step 12: Lower the vehicle

• Use the floor jack (rated 3-ton minimum) to lift slightly, remove jack stands (rated 3-ton minimum), then lower the vehicle.

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✅ After Repair

• With the engine running, inspect both ends of the hose for seepage or spraying.
• Take a 10–15 minute test drive, then recheck for leaks.
• After the next full cool-down, recheck the surge tank level and top off with Dex-Cool coolant (50/50 premix) if needed.
• Dispose of old coolant properly (most parts stores accept it for recycling).

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💰 DIY vs Shop Cost

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

DIY Cost: $35-$120 (parts only)

You Save: $130-$430 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.8 hours.

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🎯 Ready to get started?

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