Toyota Sienna Service Manual: Cooling system
On-vehicle inspection
1. INSPECT FOR COOLANT LEAK
| CAUTION: Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns. |
NOTICE: Before performing each inspection, turn the A/C switch OFF.
(a) Fill the radiator with coolant and attach a radiator cap tester.
(b) Warm up the engine.
(c) Using a radiator cap tester, increase the pressure inside the radiator to 118 kPa (1.2 kgf/cm2, 17 psi), and check that the pressure does not drop.
If the pressure drops, check the hoses, radiator and water pump for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.
2. INSPECT ENGINE COOLANT LEVEL IN RESERVOIR
(a) Check that the engine coolant level is between the LOW and FULL lines when the engine is cold.
If the engine coolant level is low, check for leaks and add "TOYOTA Super Long Life Coolant" or similar high quality ethylene glycol based non-silicate, nonamine, non-nitrite and non-borate coolant with longlife hybrid organic acid technology to the FULL line.
| NOTICE: Do not substitute plain water for engine coolant. |
3. INSPECT ENGINE COOLANT QUALITY
(a) Remove the radiator cap.
| CAUTION: Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns. |
(b) Check if there are any excessive deposits of rust or scales around the radiator cap and radiator filler hole. Also, the coolant should be free of oil.
If excessively dirty, clean the coolant passage and replace the coolant.
(c) Install the radiator cap.
2Gr-fe cooling
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Other materials:
Using the steering
wheel switches
The steering wheel switches can be used to operate a connected
cellular phone.
Operating a telephone using the steering wheel switches
Volume switch
Increase/Decrease the volume
Press and hold:
Continuously increase/
decrease the volume
Cursor switch
Select a list/t ...
Evaporator temperature sensor circuit
DESCRIPTION
The evaporator temperature sensor (A/C thermistor) is installed on the
evaporator in the air conditioning
unit. It detects the temperature of the cooled air that has passed through the
evaporator and its signal is
used to control the air conditioning. It sends a signal to the A/C ...
Front seat frame with adjuster
Inspection
1. INSPECT FRONT SEAT ADJUSTER SUB-ASSEMBLY LH
Check operation of the seat frame (slide motor).
Check if the seat frame moves smoothly when
the battery is connected to the slide motor
connector terminals.
OK
If the result is not as specified, replace t ...
