🔧 Radiator Hose - Replacement

This covers replacement of the upper radiator hose on your RAV4. The job is straightforward, but you must work only on a fully cooled engine and keep coolant off the hybrid electrical components.

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

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⚠️ Safety & Precautions

• Work only when the engine is completely cold. Hot coolant can cause serious burns.
• Do not open the coolant reservoir cap while the system is hot.
• Keep hands, tools, and clothing away from the electric cooling fans.
• Use care around hybrid-related wiring and connectors. Do not disconnect orange high-voltage cables.
• Battery disconnect is not required for this hose replacement.
• Use only the correct Toyota Super Long Life Coolant or equivalent specified for this vehicle.

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🔧 Required Tools

You'll need the following tools for this repair:

• Flat-head screwdriver
• Hose clamp pliers (specialty)
• Drain pan
• Funnel
• Long nose pliers
• Ratchet
• 10mm socket
• Shop towels
• Safety glasses
• Nitrile gloves
• Jack stands

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Radiator hose - Qty: 1
• Spring hose clamps - Qty: 2
• Engine 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 before starting.
• Open the hood and remove the engine cover if equipped.
• Place a drain pan under the radiator area before loosening any hose.
• Have rags ready for spilled coolant.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Access the hose

• Open the hood and locate the radiator hose you are replacing.
• If the engine cover is in the way, remove it using a 10mm socket and ratchet.
• Move any intake duct or plastic cover that blocks access.

Step 2: Relieve cooling system pressure

• Make sure the engine is fully cold.
• Slowly loosen the coolant reservoir cap by hand to relieve any leftover pressure, then remove it.
• Never force a hot cap open.

Step 3: Drain coolant as needed

• Place the drain pan below the hose connection.
• If coolant will spill when the hose comes off, drain enough coolant from the radiator drain plug first.
• Use a flat-head screwdriver or hose clamp pliers to loosen the clamp style on your hose.

Step 4: Remove the old hose

• Use hose clamp pliers to compress the spring clamps and slide them back on the hose.
• Twist the hose gently to break it free.
• Pull the hose off both ends by hand.
• If it is stuck, use a flat-head screwdriver carefully to lift the hose edge. Do not damage the radiator neck.

Step 5: Compare and transfer clamps

• Compare the new hose to the old one for length and shape.
• Move the clamps to the same positions on the new hose if the replacement does not include new ones.
• Match the hose bend before installing.

Step 6: Install the new hose

• Push the new hose fully onto both fittings until it seats all the way.
• Use hose clamp pliers to place the clamps directly over the sealing beads.
• Make sure the hose is not twisted or rubbing against anything.

Step 7: Refill coolant

• Use a funnel to refill the cooling system with the correct coolant.
• Fill the reservoir to the full mark.
• If you drained a lot of coolant, top off slowly and watch the level closely.

Step 8: Bleed air from the system

• Start the engine and let it idle with the reservoir cap off if service procedures allow.
• Turn the heater to full hot and the fan to low.
• Watch for bubbles in the reservoir and add coolant as the level drops.
• Once bubbles stop, install the cap securely.
• Check the level again after cooling down.

Step 9: Recheck for leaks

• Inspect both ends of the hose for drips while the engine is running.
• Look under the vehicle for coolant leaks.
• Shut the engine off and recheck the hose clamp position.

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✅ After Repair

• Drive the vehicle briefly and watch the temperature gauge or warning lights.
• Recheck coolant level after the engine cools again.
• Inspect the hose and clamps one more time for seepage.
• If the level drops, top off the reservoir with the correct coolant.

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💰 DIY vs Shop Cost

Shop Cost: ₹6,000-₹14,000 (parts + labor)

DIY Cost: ₹2,000-₹5,500 (parts only)

You Save: ₹4,000-₹8,500 by doing it yourself!

Shop labor rates vary but typically run ₹1,500-₹3,500/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.