RM3660EC _51 Engine / Hybrid System _080791 NR Series INTAKE / EXHAUST _0392516 COOLANT(for Intercooler) G

NR Series INTAKE / EXHAUST  COOLANT(for Intercooler)  ON-VEHICLE INSPECTION  


CAUTION / NOTICE / HINT

CAUTION:
A378050

Do not remove the reserve tank cap (for Intercooler), air release valve or radiator drain cock plug (for Intercooler) while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.


PROCEDURE

Hide 1.INSPECT FOR COOLANT LEAK (for Intercooler)

a.

Remove the reserve tank cap (for Intercooler).


b.
A432239

Fill the intercooler reservoir assembly with coolant, and then install a radiator cap tester.


c.

Warm up the engine.


d.

Using the radiator cap tester, increase the pressure inside the intercooler cooling radiator assembly to 118 kPa (1.2 kgf/cm2, 17 psi), and then check that the pressure does not drop.

If the pressure drops, check the hoses, intercooler cooling radiator assembly, intercooler assembly, turbocharger sub-assembly and electric water pump assembly for leakage.

If there are no signs of external coolant leaks, check the intercooler assembly and turbocharger sub-assembly.


e.

Remove the radiator cap tester.


f.

Install the reserve tank cap (for Intercooler).


Hide 2.INSPECT COOLANT LEVEL (for Intercooler)

a.
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1.802,0.823 2.104,0.635 2.104,0.635 2.313,0.635 true 1.792,0.958 2.115,1.094 2.115,1.094 2.333,1.094 true 2.344,0.552 2.552,0.729 0.208,0.177 10 false *a 2.354,1 2.552,1.208 0.198,0.208 10 false *b
*a FULL Line
*b LOW Line


Check that the coolant level is between the LOW and FULL lines when the engine is cold.

If the coolant level is low, check for leaks and add TOYOTA Super Long Life Coolant (SLLC) or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid organic acid technology up to the FULL line.

NOTICE:

Do not substitute plain water for coolant.



Hide 3.INSPECT COOLANT QUALITY (for Intercooler)

a.

Remove the reserve tank cap (for Intercooler).


b.

Check that there are no excessive deposits of rust or scale around the reserve tank cap (for Intercooler) and that the coolant is free of oil.

If the coolant is excessively dirty, replace the coolant.


c.

Install the reserve tank cap (for Intercooler).