INSTALL COOLING FAN SWITCH
Install a new gasket onto the cooling fan switch.
Using a 19 mm deep socket wrench, install the cooling fan switch.
Connect the cooling fan switch connector.
ADD ENGINE COOLANT
Firmly tighten the drain plugs.
Fill the radiator reservoir assembly with engine coolant to the top of the inlet.
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Note
Do not substitute plain water for engine coolant.
Tech Tips
Use of improper coolants may damage the engine cooling system.
Use only Toyota Super Long Life Coolant or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids).
Loosen the bleeder plug of the outlet housing.
When air is bled and the engine coolant drains out, firmly tighten the bleeder plug.
Add engine coolant up to the B line mark in the radiator reservoir assembly and install the radiator reservoir cap sub-assembly.
Warm up the engine until the thermostat opens.
While the thermostat is open, circulate the engine coolant for several minutes.
Tech Tips
The thermostat open timing can be confirmed by pressing the No. 3 radiator hose by hand, and checking when the engine coolant starts to flow inside the hose.
After the engine cools down, check that the engine coolant level is between the LOW and FULL level marks.
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
INSPECT FOR ENGINE COOLANT LEAK