🔧 Radiator Hose - Replacement

On your CR-V, the radiator hose carries coolant between the engine and radiator. Replacing a leaking, swollen, or cracked hose helps prevent overheating and coolant loss. If one hose is failing, inspect the other hose and the clamps too.

Difficulty Level: Beginner | Estimated Time: 1-2 hours

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⚠️ Safety & Precautions

• Work only on a completely cool engine. Hot coolant can spray and cause burns.
• Use jack stands if you lift the vehicle. Never work under a car supported only by a jack.
• Keep coolant away from children and pets. It is toxic.
• If your CR-V has been overheating, let it cool fully before opening anything in the cooling system.
• Battery disconnect is not required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Flat blade screwdriver
• Socket wrench set
• 8mm socket
• Pliers
• Hose clamp pliers (specialty)
• Drain pan
• Funnel
• Shop towels
• Safety glasses
• Nitrile gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Radiator hose - Qty: 1
• Radiator hose clamps - Qty: 2
• Honda Type 2 coolant - Qty: 1-2 gallons

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Let the engine cool completely.
• Place a drain pan under the radiator drain area before opening the cooling system.
• If you are replacing the lower hose, raise the front of the vehicle slightly for better access.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Relieve pressure and drain coolant

• Make sure the engine is cool, then slowly remove the radiator cap if equipped.
• Use a drain pan under the radiator and open the radiator drain plug with your hand or a flat blade screwdriver, depending on the style.
• Drain enough coolant until the hose level is below the hose you are replacing.
• Do not rush this step.

Step 2: Access the hose

• Use an 8mm socket and socket wrench to remove any air intake ducting or covers blocking access.
• If replacing the lower hose, you may need to remove the under cover with an 8mm socket.
• Keep track of all clips and fasteners.

Step 3: Remove the old hose

• Use hose clamp pliers (specialty) or pliers to compress the spring clamps and slide them back on the hose.
• Twist the hose gently to break it free, then pull it off the radiator neck and engine outlet.
• If it is stuck, use a flat blade screwdriver carefully to lift the hose edge loose.
• Do not damage the aluminum necks.

Step 4: Clean the sealing surfaces

• Use shop towels to clean the radiator neck and engine fitting.
• Check for corrosion, cracks, or pitting where the hose seals.
• Replace the clamps if they are rusty, weak, or bent.

Step 5: Install the new hose

• Slide the clamps onto the new hose first.
• Push the hose fully onto both ends until it seats against the stop bead.
• Position the clamps in the same place as the originals, just behind the bead on each fitting.
• Use hose clamp pliers (specialty) or pliers to secure the clamps.
• Make sure the hose is not twisted.

Step 6: Reassemble removed parts

• Reinstall any intake ducting or covers using the 8mm socket and socket wrench.
• Reinstall the under cover if removed.

Step 7: Refill coolant and bleed air

• Use a funnel to refill the cooling system with Honda Type 2 coolant.
• Fill the radiator and reservoir to the correct level.
• Start the engine and let it idle with the heater set to hot.
• Watch for bubbles and keep topping off as air escapes.
• Install the radiator cap once the coolant level stabilizes and no more air appears.

Step 8: Check for leaks

• Inspect both ends of the hose and the clamps while the engine is running.
• Shut the engine off and recheck the coolant level after it cools.
• Add coolant to the reservoir if needed.

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✅ After Repair

• Test drive the CR-V and watch the temperature gauge.
• Recheck for coolant leaks after the drive.
• Check coolant level again the next day when the engine is cold.
• If the temperature climbs or coolant keeps dropping, inspect the other hose, radiator, thermostat housing, and water pump area.

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💰 DIY vs Shop Cost

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

DIY Cost: $35-$90 (parts only)

You Save: $145-$260 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1-2 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.