cooling

Radiator Hoses - Both

for 2012 Toyota Camry 2.5L I4 · FWD

Difficulty

Easy

Time

1.0 h

Tools

Steps

Replace both upper and lower radiator hoses on the 2012-2017 Toyota Camry 2.5L I4 engine to prevent coolant leaks and maintain proper engine cooling.

Warnings

⚠️Never open the cooling system when engine is hot. Pressurized coolant can cause severe burns. Allow engine to cool completely for at least 2 hours before starting work.

⚠Toyota Super Long Life Coolant is toxic to pets and wildlife. Clean up any spills immediately and dispose of old coolant properly at a recycling center.

ℹ️This procedure will result in coolant loss. Have replacement coolant available before starting.

Tools required

10mm socket and ratchetEssential

Flat-blade screwdriverEssential

Drain pan (minimum 2 gallon capacity)Essential

Hose clamp pliers

Needle-nose pliersEssential

Shop towelsEssential

Torque wrench (2-30 Nm range)Essential

FunnelEssential

Parts

Upper radiator hose × 1 — Use OEM specification
Lower radiator hose × 1 — Use OEM specification
Hose clamps (if original clamps are damaged) × 4 — Use OEM specification

Fluids

Toyota Super Long Life Coolant (Pink) — 3 qt

Preparation

Ensure engine is completely cold to the touch
Park vehicle on level ground and engage parking brake
Place drain pan under radiator drain plug location
Remove engine splash shield if equipped for better access to lower hose

Procedure

1
Drain cooling system
Slowly remove the radiator cap to release any residual pressure. Locate the radiator drain plug (petcock) at the bottom driver side of the radiator. Place drain pan underneath and open the drain plug to drain coolant. Once drained, close and tighten the drain plug to specification.
Torque spec
Coolant Drain Plug15 Nm (11 lb-ft)
2
Remove upper radiator hose at radiator end
Locate the upper radiator hose connected to the top of the radiator on the driver side. Using hose clamp pliers or flat-blade screwdriver, loosen the spring clamp or worm-gear clamp securing the hose to the radiator neck. Slide the clamp back along the hose away from the connection point. Twist the hose gently to break the seal, then pull it off the radiator neck. Be prepared for residual coolant to drain.
3
Remove upper radiator hose at thermostat housing end
Follow the upper radiator hose to the engine-side connection at the thermostat housing on the front of the engine. Loosen the clamp at this connection point and slide it back along the hose. Twist and pull the hose to disconnect it from the thermostat housing outlet. Remove the entire upper radiator hose from the vehicle.
4
Remove lower radiator hose at radiator end
Locate the lower radiator hose connected to the bottom of the radiator on the driver side. Loosen the clamp securing the hose to the radiator outlet and slide it back. Twist the hose to break the seal and pull it off the radiator connection. Additional coolant will drain at this point.
5
Remove lower radiator hose at water pump end
Follow the lower radiator hose to its connection at the water pump inlet on the engine block. This connection is located lower on the engine and may require reaching from underneath. Loosen the clamp and slide it back along the hose. Twist and pull the hose to disconnect it from the water pump inlet. Remove the entire lower radiator hose from the vehicle.
6
Inspect connection points and clean surfaces
Thoroughly inspect all four hose connection points (radiator upper and lower necks, thermostat housing outlet, and water pump inlet) for corrosion, damage, or old gasket material. Clean all surfaces with a shop towel. Check that all connection points are smooth and free from debris that could prevent a proper seal with the new hoses.
7
Install new lower radiator hose
Position new hose clamps on the new lower radiator hose before installation (one clamp for each end). Connect the lower hose to the water pump inlet first, ensuring it seats fully onto the inlet pipe. Position the clamp 1/4 inch from the end of the hose and tighten to specification. Route the hose to the radiator lower outlet, seat it fully, position the clamp, and tighten to specification.
Torque spec
Hose Clamps3 Nm (2 lb-ft)
8
Install new upper radiator hose
Position new hose clamps on the new upper radiator hose. Connect the upper hose to the thermostat housing outlet first, ensuring it seats completely onto the outlet neck. Position the clamp 1/4 inch from the hose end and tighten to specification. Route the hose to the radiator upper neck, verify proper alignment and no interference with other components, seat it fully, position the clamp, and tighten to specification.
Torque spec
Hose Clamps3 Nm (2 lb-ft)
9
Refill cooling system
Using a funnel, slowly pour Toyota Super Long Life Coolant (Pink) into the radiator fill neck until it reaches the bottom of the neck. Fill the coolant reservoir to the FULL line. Install the radiator cap securely. Start the engine and allow it to reach normal operating temperature with the heater on maximum setting to purge air from the system.
10
Burp cooling system and check levels
With the engine at operating temperature, monitor the coolant level. Allow the engine to run for 5-10 minutes to circulate coolant and release trapped air. Turn off the engine and allow it to cool for 15 minutes. Carefully remove the radiator cap and check coolant level. Top off if necessary. Check the reservoir level and adjust to the FULL mark. Reinstall the radiator cap.

Reassembly

Reinstall engine splash shield if it was removed
Double-check all hose clamp connections are secure
Wipe down any coolant residue from engine components

Verification

Visually inspect all four hose connections for proper seating and clamp positioning
Check for coolant leaks around all hose connections with engine at operating temperature
Verify coolant level is at the FULL mark in the reservoir when engine is cold
Confirm heater produces hot air indicating proper coolant circulation
Monitor coolant level over the next few days and top off if necessary as air continues to purge from the system