Throttle Body -- Installation |
- HINT:
- Perform "Inspection After Repairs" after replacing the throttle body with motor assembly (LandCruiser RM000004NJC03XX.html).
| 1. INSTALL THROTTLE BODY WITH MOTOR ASSEMBLY |
- HINT:
- Perform "Inspection After Repairs" after replacing the throttle body with motor assembly (LandCruiser RM000004NJC03XX.html).
Install a new gasket to the intake manifold.
Text in Illustration *a Protrusion *b Groove - HINT:
- Align the protrusion of the gasket with the groove of the intake manifold.
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Install the throttle body with motor assembly with the 4 bolts.
- Torque:
- 10 N*m{102 kgf*cm, 7 ft.*lbf}
Connect the water by-pass hose to the throttle body with motor assembly, and slide the clip to secure the hose.
Connect the No. 2 water by-pass hose to the throttle body with motor assembly, and slide the clip to secure the hose.
Connect the throttle body with motor connector.
| 2. INSTALL INTAKE AIR CONNECTOR |
Install the intake air connector with the 3 bolts.
- Torque:
- 8.0 N*m{82 kgf*cm, 71 in.*lbf}
Tighten the hose clamp.
- Torque:
- 5.0 N*m{51 kgf*cm, 44 in.*lbf}
Connect the vacuum hose.
Connect the No. 2 ventilation hose.
Connect the vacuum hose to the air pressure sensor.
Connect the air pressure sensor connector.
Attach the wire harness and vacuum hose to the intake air connector.
| 3. INSTALL AIR CLEANER CAP SUB-ASSEMBLY WITH AIR CLEANER HOSE |
Install the air cleaner cap sub-assembly with air cleaner hose and align its matchmark with the matchmark of the intake air connector as shown in the illustration.
Text in Illustration *a Upper *b Front *c Matchmark
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Tighten the hose clamp.
- NOTICE:
- Check that the air cleaner hose is securely installed.
Attach the 4 clamps.
Attach the 3 clamps and connect the intake mass air flow meter connector.
| 4. ADD ENGINE COOLANT |
Tighten the cylinder block drain cock plug.
- Torque:
- 13 N*m{130 kgf*cm, 9 ft.*lbf}
Tighten the radiator drain cock plug by hand.
Disconnect the 2 vinyl hoses.
Add engine coolant.
- Standard Capacity:
Item Specified Condition for Automatic Transmission w/o Rear Heater 8.1 liters (8.6 US qts, 7.1 Imp. qts) w/ Rear Heater 9.9 liters (10.5 US qts, 8.7 Imp. qts) for Manual Transmission w/o Rear Heater 8.3 liters (8.8 US qts, 7.3 Imp. qts) w/ Rear Heater 10.1 liters (10.7 US qts, 8.9 Imp. qts)
- NOTICE:
- Do not substitute plain water for engine coolant.
- HINT:
- TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, 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).
- Press the No. 1 and No. 2 radiator hoses several times by hand, and then check the coolant level. If the coolant level is low, add coolant.
Slowly pour coolant into the radiator reservoir until it reaches the F line.
Install the reservoir cap.
Install the radiator cap sub-assembly.*1
Start the engine and stop it immediately.*2
Allow approximately 10 seconds to pass. Then remove the radiator cap sub-assembly and check the coolant level. If the coolant level has decreased, add coolant.*3
Repeat steps *1, *2 and *3 until the coolant level does not decrease.
- HINT:
- Be sure to perform this step while the engine is cold, as air in the No. 1 radiator hose will flow into the radiator if the engine is warmed up and the thermostat opens.
Install the radiator cap sub-assembly.*4
Set the air conditioning as follows.*5
Item Condition Fan speed Any setting except off Temperature Toward WARM Air conditioning switch Off
Start the engine, warm it up until the thermostat opens, and then continue to run the engine for several minutes to circulate the coolant.*6
- CAUTION:
- Wear protective gloves. Hot areas on the parts may injure your hands.
- Be careful of the fan.
- Be careful as the engine, radiator and radiator hoses are hot and can cause burns.
- NOTICE:
- Immediately after starting the engine, if the radiator reservoir does not have any coolant, perform the following: 1) stop the engine, 2) wait until the coolant has cooled down, and 3) add coolant until the coolant is filled to the F line.
- Do not start the engine when there is no coolant in the radiator reservoir.
- Pay attention to the needle of the engine coolant temperature receiver gauge. Make sure that the needle does not show an abnormally high temperature.
- If there is not enough coolant, the engine may burn out or overheat.
- HINT:
- Press the No. 1 and No. 2 radiator hoses several times by hand to bleed air while warming up the engine.
- The thermostat opening timing can be confirmed by pressing the No. 2 radiator hose by hand and checking when the engine coolant starts to flow inside the hose.
Stop the engine, wait until the engine coolant cools down to ambient temperature. Then remove the radiator cap sub-assembly and check the coolant level.*7
- CAUTION:
- Do not remove the radiator cap sub-assembly while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
If the coolant level has decreased, add coolant and warm up the engine until the thermostat opens.*8
If the coolant level has not decreased, check that the coolant level in the radiator reservoir is at the F line.
If the coolant level is below the F line, repeat steps *4 through *8.
If the coolant level is above the F line, drain coolant until the coolant level reaches the F line.
| 5. INSPECT FOR COOLANT LEAK |
- CAUTION:
- To avoid being burned, do not remove the radiator cap sub-assembly while the engine and radiator assembly are still hot. Thermal expansion may cause hot engine coolant and steam to blow out from the radiator assembly.
Fill the radiator assembly with coolant and attach a radiator cap tester.
Warm up the engine.
Using the radiator cap tester, increase the pressure inside the radiator assembly to 123 kPa (1.3 kgf/cm2, 18 psi), and then check that the pressure does not drop.
If the pressure drops, check the hose, radiator assembly and engine water pump assembly for leakage. If no external leakage is found, check the heater core, cylinder block and cylinder head.
| 6. INSTALL NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY |
Hook the No. 1 engine under cover sub-assembly to the vehicle body as shown in the illustration.
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Install the 4 bolts.
- Torque:
- 29 N*m{296 kgf*cm, 21 ft.*lbf}
| 7. INSTALL FRONT BUMPER COVER LOWER |
Install the front bumper cover lower with the 5 bolts and clip.
- Torque:
- 8.0 N*m{82 kgf*cm, 71 in.*lbf}
| 8. PERFORM INITIALIZATION |
- NOTICE:
- Perform the following procedure after replacing the throttle body with motor assembly or any throttle body components. The following procedure should also be performed if the throttle body with motor assembly is cleaned.
Turn the ignition switch to ON without operating the accelerator pedal.
- NOTICE:
- If the accelerator pedal is operated, perform the above steps again.
Connect the GTS to the DLC3 and clear the DTCs (LandCruiser RM000000VNG00DX.html).
Perform "Inspection After Repairs" (LandCruiser RM000004NJC03XX.html).
Start the engine, and check that the MIL is not illuminated and that the idle speed is within the specified range when the A/C is switched off after the engine is warmed up.
- Engine Idle Speed:
Condition Specified Condition A/C switched off 600 to 700 rpm
- NOTICE:
- Be sure to perform this step with all accessories off.
- Make sure that the shift lever is in N (neutral) or P.
Enter the following menus: Powertrain / Engine and ECT / Data List / Throttle Sensor Position. Fully depress the accelerator pedal and check that the value changes.
Perform a road test and confirm that there are no abnormalities.