🔧 CR-V - Radiator Hose Replacement

This procedure covers replacing a radiator hose on your CR-V. The engine uses pressurized coolant, so the big goals are to safely drain enough coolant, swap the hose, and refill/bleed the system so it does not overheat.

Difficulty Level: Beginner | Estimated Time: 1.5-2.5 hours

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⚠️ Safety & Precautions

• Let the engine cool completely before opening the cooling system. Hot coolant can cause serious burns.
• Use gloves and safety glasses. Coolant is slippery and toxic.
• Keep the coolant reservoir cap closed until the engine is cold.
• Dispose of drained coolant properly. Do not pour it on the ground.
• No battery disconnect is required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

• Flat-blade screwdriver
• Pliers
• Drain pan
• Funnel
• 10mm socket
• Ratchet
• Extension
• Shop towels
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Radiator hose - Qty: 1
• Coolant hose clamp(s) - Qty: 2
• Honda-approved 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 fully.
• Place a drain pan under the radiator before opening any hose connection.
• For a clean repair, replace the clamp(s) if they are rusty, weak, or damaged.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove coolant pressure safely

• With the engine cold, slowly loosen the coolant reservoir cap to release any remaining pressure.
• If the system is still warm, stop and wait longer.

Step 2: Drain enough coolant

• Use the drain pan under the radiator area.
• If your hose sits low on the radiator, open the radiator drain or remove the lower hose carefully to drain coolant.
• Keep coolant off painted surfaces.

Step 3: Remove the old hose

• Use pliers to move the spring clamps away from the hose ends, or use a flat-blade screwdriver if your hose uses screw clamps.
• Twist the hose gently to break it loose, then pull it off the radiator neck and engine neck.
• If the hose is stuck, use your hands to work it loose. Avoid prying hard on the plastic necks.

Step 4: Inspect the fittings

• Use a shop towel to clean the hose connections.
• Check the radiator neck and engine-side pipe for cracks, rust, or swelling.
• If the neck is damaged, do not install the new hose until the damage is repaired.

Step 5: Install the new hose

• Compare the new hose to the old one to confirm the shape and length match.
• Slide the clamps onto the hose first, then push the hose fully onto both fittings.
• Position each clamp in the same spot as the original.
• Seat the hose past the bead on the pipe.

Step 6: Refill the cooling system

• Use a funnel to refill with Honda-approved coolant.
• Fill the radiator and reservoir to the correct level.
• If air pockets form, gently squeeze the hose a few times to help move trapped air out.

Step 7: Bleed and warm up the system

• Start the engine and let it idle with the heater set to warm.
• Watch the coolant level as air escapes. Add coolant as needed.
• Look closely at both hose ends for leaks.
• Let the engine reach normal operating temperature, then shut it off and let it cool.

Step 8: Final level check

• When the engine is fully cool again, recheck the radiator and reservoir levels.
• Top off if needed.
• Use the 10mm socket and ratchet only if any nearby splash shield or intake duct must be removed for access.

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✅ After Repair

• Test drive for 10-15 minutes and watch the temperature gauge.
• Check under the vehicle for drips after the drive.
• Recheck coolant level the next morning when fully cold.
• If the heater blows cold or the temperature rises, air may still be trapped in the system.

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💰 DIY vs Shop Cost

Shop Cost: $220-$420 (parts + labor)

DIY Cost: $45-$110 (parts only)

You Save: $175-$310 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-2.5 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.