cooling
Cooling Fan Motor
for 2021 Toyota RAV4 2.5L I4 · AWD
Difficulty
Moderate
Time
1.6 h
Tools
8
Steps
14
This procedure covers the removal and replacement of the engine cooling fan motor assembly on a 2019-2024 Toyota RAV4 with the 2.5L I4 gasoline engine.
Warnings
⚠️Allow engine to cool completely before beginning work. Coolant system operates under pressure and can cause severe burns if opened when hot.
⚠Disconnect negative battery terminal and wait at least 90 seconds before working near cooling fan to prevent accidental fan activation.
⚠Do not allow coolant to contact painted surfaces or electrical components. Clean any spills immediately with water.
Tools required
10mm socket and ratchetEssential
12mm socket and ratchetEssential
Extension setEssential
Flathead screwdriver
Torque wrenchEssential
Drain pan (minimum 2 gallon capacity)Essential
Hose clamp pliers
Trim removal tool set
Parts
- Cooling fan motor assembly × 1 — Use OEM specification
- Radiator drain plug gasket × 1 — Use OEM specification
Fluids
- Toyota Super Long Life Coolant (Pink) — 2 qt
Preparation
- Ensure engine is completely cold to the touch (minimum 2 hours after last operation)
- Disconnect negative battery cable and secure away from terminal
- Wait minimum 90 seconds after battery disconnect for system capacitors to discharge
- Remove engine under covers if equipped using 10mm socket
- Place drain pan under radiator drain plug location on passenger side lower corner
Procedure
- 1Drain cooling systemOpen the radiator drain plug located at the lower passenger side of the radiator by turning counterclockwise. Allow approximately 2 gallons of coolant to drain into the pan. Once drained, remove and inspect the drain plug gasket for damage and replace if necessary.
- 2Disconnect upper radiator hoseLocate the upper radiator hose connection at the radiator. Use hose clamp pliers or flathead screwdriver to release the spring clamp, then slide it back along the hose. Twist the hose gently to break the seal, then pull away from radiator neck. Remaining coolant will drain.Torque specHose Clamps4 Nm (3 lb-ft)
- 3Remove air intake componentsRemove the engine air intake duct and air cleaner assembly to gain access to the fan shroud. Disconnect the air intake sensor connector, loosen the hose clamps at the throttle body and air cleaner outlet, then remove the mounting bolts securing the air cleaner housing.
- 4Disconnect cooling fan electrical connectorLocate the cooling fan motor electrical connector on the fan shroud assembly. Press the locking tab and pull the connector straight out. Do not pull on wires. Route the wire harness clear of the fan shroud.Torque specElectrical Connector5 Nm (4 lb-ft)
- 5Disconnect auxiliary connectionsIf equipped, disconnect any auxiliary cooler lines or transmission cooler lines from the radiator. Use a flare nut wrench to prevent damage to fittings. Cap or plug open lines to prevent contamination.
- 6Remove fan shroud mounting boltsLocate the four fan shroud mounting bolts securing the assembly to the radiator. These are positioned at the top corners and lower positions of the shroud. Remove all four bolts using a 10mm socket. Support the fan shroud assembly during removal of the final bolt.Torque specMounting Bolts27 Nm (20 lb-ft)
- 7Remove fan shroud assemblyCarefully lift the cooling fan and shroud assembly straight up and out of the engine compartment. The assembly will clear the radiator once lifted approximately 6 inches. Tilt slightly toward the engine if needed to clear obstacles. Place assembly on clean work surface.
- 8Remove fan motor from shroudWith the fan shroud on a stable work surface, locate the three or four fan motor mounting bolts securing the motor to the shroud. Remove these bolts using a 10mm socket. Note the position of any wiring clips or brackets. Separate the motor from the shroud assembly.Torque specFan Motor Bolts8 Nm (6 lb-ft)
- 9Install new fan motor to shroudPosition the new cooling fan motor onto the shroud, aligning all mounting holes. Ensure any wiring clips or brackets are correctly positioned. Install the fan motor bolts hand-tight, then torque to specification in a cross pattern.Torque specFan Motor Bolts8 Nm (6 lb-ft)
- 10Reinstall fan shroud assemblyLower the complete fan shroud assembly into the engine compartment, ensuring it seats properly against the radiator mounting points. Align all four mounting bolt holes. Install mounting bolts hand-tight initially, then torque to specification.Torque specMounting Bolts27 Nm (20 lb-ft)
- 11Reconnect electrical and hose connectionsReconnect the cooling fan motor electrical connector until it clicks into place. Reinstall the upper radiator hose onto the radiator neck, ensuring it seats fully. Position the hose clamp 1/4 inch from the hose end and secure.Torque specElectrical Connector5 Nm (4 lb-ft)Hose Clamps4 Nm (3 lb-ft)
- 12Reinstall air intake componentsReinstall the air cleaner housing and intake duct in reverse order of removal. Ensure all clamps are tight and the air intake sensor is properly connected. Verify no tools or parts are left in the engine bay.
- 13Refill cooling systemClose the radiator drain plug and torque to specification. Fill the cooling system with Toyota Super Long Life Coolant (Pink) mixed to manufacturer specification (typically 50/50 with distilled water). Fill through the radiator cap or coolant reservoir as applicable until level reaches the cold fill line.
- 14Bleed cooling system and testReconnect the negative battery cable. Start the engine and allow it to reach operating temperature with the heater on maximum. Monitor coolant level and add as needed. Check for leaks around all connections. Verify the cooling fan activates when the engine reaches normal operating temperature. Top off coolant as needed after cooling system is fully bled.
Reassembly
- Torque all fasteners to specified values using a calibrated torque wrench
- Ensure all electrical connectors are fully seated and locked
- Verify hose clamps are positioned correctly and tightened to specification
- Reinstall any removed under covers or splash shields
Verification
- Start engine and verify no coolant leaks at radiator hose, drain plug, or cooler line connections
- Allow engine to reach full operating temperature and verify cooling fan activates automatically
- Listen for abnormal fan motor noise during operation
- Verify coolant level is at proper cold fill mark after system has fully bled and cooled
- Confirm no warning lights are illuminated on instrument cluster
- Test drive vehicle and monitor temperature gauge remains in normal range