Note
When replacing the injectors (including shuffling the injectors between the cylinders), common rail or cylinder head, it is necessary to replace the injection pipes with new ones.
When replacing the fuel supply pump, common rail, cylinder block, cylinder head, cylinder head gasket or timing gear case, it is necessary to replace the fuel inlet pipe with a new one.
After removing the injection pipes and fuel inlet pipe, clean them with a brush and compressed air.
INSTALL INJECTOR ASSEMBLY
Note
Be sure to install the injector, No. 1 nozzle holder clamp, washer and bolt in their original positions.
Install 4 new injection nozzle seats to the cylinder head.
Apply a small amount of clean engine oil to 4 new O-rings.
| *1 | New O-Ring |
Install one of the O-rings to each injector as shown in the illustration.
Insert the 4 injectors into the cylinder head.
Note
Insert the injector until it touches the injection nozzle seat surface.
After installing the injector to the cylinder head, the O-ring may prevent the injector from being fully seated. If so, pull out the injector and reinstall it.
Always reinstall an injector to the same place it was removed from.
For an injector that has been replaced with a new injector, register the injector compensation code Click here.
| *1 | Washer |
| *a | Downward |
Temporarily install 4 new washers and the 4 No. 1 nozzle holder clamps with the 4 bolts.
Tech Tips
Apply a small amount of engine oil to the threads and under the heads of the clamp bolts.
Temporarily install the 4 injection pipes with the union nuts.
Tech Tips
To position the injectors, loosely tighten the union nut.
Check the nozzle leakage pipe. Check that there are no scratches or dents on the 5 union seal surfaces.
If scratches or dents are present, replace the nozzle leakage pipe.
Set the nozzle leakage pipe and 5 new gaskets in place.
Apply a small amount of oil to the 4 injector hollow screws and union bolt.
Temporarily install the nozzle leakage pipe with the 4 injector hollow screws and union bolt.
Tighten the 4 nozzle holder clamp bolts.
| *1 | Union Bolt |
Tighten the 4 injector hollow screws in order from 1 to 4.
Note
If an injector hollow screw is accidentally tightened beyond the torque specification, it must be replaced.
Tighten the union bolt.
Note
If the union bolt is accidentally tightened beyond the torque specification, it must be replaced.
Remove the 4 injection pipes.
INSPECT FOR FUEL LEAK
Check that there are no leaks from the nozzle leakage pipe connection.
Install a new gasket and the and No. 2 nozzle leakage pipe to the cylinder head with SST (check valve).
| Part No. |
|---|
| 23762-27010 (No. 2 nozzle leakage pipe) |
Apply a small amount of soapy water (or other fluid for detecting fuel leakage) on the nozzle leakage pipe connection.
Install SST (turbocharger pressure gauge) to the fuel return side of the nozzle leakage pipe, maintain 100 kPa (1.0 kgf/cm2, 15 psi) of pressure for 60 seconds and check that no bubbles form.
After checking for fuel leaks, wipe off the soapy water from the nozzle leakage pipe connection.
Remove SST, the No. 2 nozzle leakage pipe and gasket.
Note
Never reinstall the disassembled union bolt to the engine.
INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY
| *1 | No. 3 Cylinder Head Cover Gasket |
| *2 | Cylinder Head Cover |
Install 4 new No. 3 cylinder head cover gaskets to the cylinder head cover in the directions shown in the illustration.
Note
Do not install the No. 3 cylinder head cover gaskets at an angle.
Check that there is no foreign matter at the installation location of the No. 3 cylinder head cover gaskets.
Remove any old seal packing (FIPG material) from the cylinder head.
Apply seal packing to the areas shown in the illustration.
| Seal packing |
|---|
| Toyota Genuine Seal Packing Black, Three Bond 1207B or equivalent |
|
Seal Packing |
Note
Remove any oil from the contact surface.
Install the cylinder head cover within 3 minutes after applying seal packing.
Do not start the engine for at least 2 hours after installing the cylinder head cover.
Install a new cylinder head cover gasket to the cylinder head cover.
Temporarily install the cover with the 10 bolts and 2 nuts in the order shown in the illustration. Then, tighten the 10 bolts and 2 nuts in the order shown in the illustration in 2 progressive steps.
Install 4 new nozzle holder seals.
INSTALL VENTILATION PIPE
Connect the 2 ventilation hoses and install the ventilation pipe to the cylinder head cover with the bolt.
INSTALL NO. 2 CYLINDER HEAD COVER SUB-ASSEMBLY
Install the No. 2 cylinder head cover with the 4 bolts.
INSTALL NO. 2 NOZZLE LEAKAGE PIPE ASSEMBLY
Temporarily install the No. 2 nozzle leakage pipe with the 3 bolts.
|
Union Bolt |
Temporarily install a new gasket and the union bolt.
Tighten the 3 bolts and union bolt.
INSTALL NO. 3 NOZZLE LEAKAGE PIPE
| *1 | O-Ring |
Apply a light coat of fuel to the O-ring of the fuel check valve.
| *1 | Gasket |
|
Fuel Check Valve |
Temporarily install the No. 3 nozzle leakage pipe with the 2 bolts.
Temporarily install a new gasket and fuel check valve.
Tighten the 2 bolts and fuel check valve.
Note
Make sure the gasket of fuel check valve A contacts the No. 3 nozzle leakage pipe as shown in the illustration when tightening the fuel check valve.
Connect the 2 fuel hoses.
INSTALL NO. 2 FUEL PIPE
| *1 | O-Ring |
Apply a light coat of fuel to the O-ring of the fuel check valve.
| *1 | Gasket |
|
Union Bolt |
|
Fuel Check Valve |
Temporarily install the No. 2 fuel pipe with a new gasket and the union bolt.
Temporarily install a new gasket and the fuel check valve.
Using a 6 mm hexagon wrench, tighten the union bolt.
Note
Make sure the gasket of union bolt A contacts the No. 2 fuel pipe as shown in the illustration when tightening the union bolt.
Tighten the fuel check valve.
INSTALL NO. 4 INJECTION PIPE SUB-ASSEMBLY
Note
When replacing an injector, it is necessary to replace the 4 injection pipes with new ones.
Keep the joints of the injection pipe clean.
Temporarily install the No. 4 injection pipe with the union nuts.
Install the 2 No. 2 injection pipe clamps with the bolt and nut.
Using a 17 mm union nut wrench, tighten the injection pipe union nut on the common rail side.
Note
Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench Click here.
Using a 17 mm union nut wrench, tighten the injection pipe union nuts on the injector side.
Note
Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench Click here.
INSTALL NO. 1 FUEL PIPE
Temporarily install the No. 1 fuel pipe with the 4 bolts.
Temporarily install a new gasket with the union bolt.
Tighten the union bolt and 4 bolts in the order shown in the illustration.
Connect the No. 2 fuel pipe Click here.
| *1 | No. 2 Fuel Pipe | - | - |
|
Union Bolt | - | - |
INSTALL INTAKE AIR CONNECTOR
| *1 | Claw |
Set a new gasket on the intake manifold.
Note
Make sure the claw of the gasket faces the intake manifold as shown in the illustration.
Install the intake air connector with the 3 bolts.
INSTALL GAS FILTER BRACKET
Install the gas filter bracket with the bolt.
Attach the clamp and connect the wire harness.
INSTALL NO. 1 GAS FILTER
Install the No. 1gas filter to the gas filter bracket.
Connect the vacuum hose.
INSTALL THROTTLE BODY BRACKET
Temporarily install the throttle body bracket with the 3 bolts.
Tighten the 3 bolts of the throttle body bracket in the order shown in the illustration.
INSTALL EMISSION CONTROL VALVE BRACKET
Install the emission control valve bracket with the bolt.
INSTALL MANIFOLD ABSOLUTE PRESSURE SENSOR
Install the manifold absolute pressure sensor with the bolt.
Connect the vacuum hose and manifold absolute pressure sensor connector.
CONNECT WIRE HARNESS
Attach the 5 clamps and connect the wire harness to the cowl top panel.
for LHD:
Connect the wire harness with the bolt.
Connect the wire harness with the bolt.
INSTALL ELECTRIC EGR CONTROL VALVE ASSEMBLY
INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
Note
When disconnecting the cable, some systems need to be initialized after the cable is reconnected Click here.
ADD ENGINE COOLANT
Tighten the radiator drain cock plug by hand.
Tighten the cylinder block drain cock plug.
Fill the radiator with TOYOTA Super Long Life Coolant (SLLC) to the B line of the reservoir tank.
| Standard Capacity | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||
Tech Tips
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).
Please contact your TOYOTA dealer for further details.
for Cold Area Specification Vehicles:
Please contact any authorized TOYOTA dealer or repairer or another duly qualified and equipped professional for further details.
Note
Never use water as a substitute for engine coolant.
Press the inlet and outlet radiator hoses several times by hand, and then check the level of the coolant.
If the coolant level drops below the B line, add TOYOTA SLLC to the B line.
Install the radiator reservoir cap.
Using a wrench, install the vent plug.
Bleed air from the cooling system.
Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes.
Maintain the engine speed at 2500 to 3000 rpm.
Press the inlet and outlet radiator hoses several times by hand to bleed air.
CAUTION:
When pressing the radiator hoses:
Wear protective gloves.
Be careful as the radiator hoses are hot.
Keep your hands away from the radiator fan.
Stop the engine and wait until the coolant cools down to ambient temperature.
CAUTION:
Do not remove the radiator reservoir cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
After the coolant cools down, check that the coolant level is at the FULL line.
If the coolant level is below the FULL line, add TOYOTA SLLC to the FULL line.
BLEED AIR FROM FUEL SYSTEM
Using the hand pump mounted on the fuel filter cap, bleed air from the fuel system. Continue pumping until the pump resistance increases.
Note
The maximum hand pump pumping speed is 2 strokes per second.
The hand pump must be pushed with a full stroke during pumping.
When the fuel pressure at the supply pump inlet port reaches a saturated pressure, the hand pump resistance increases.
If pumping is interrupted during the air bleeding process, fuel in the fuel line may return to the fuel tank. Continue pumping until the hand pump resistance increases.
If the hand pump resistance does not increase despite consecutively pumping 200 times or more, there may be a fuel leak between the fuel tank and fuel filter, the hand pump may be malfunctioning, or the vehicle may have run out of fuel.
If air bleeding using the hand pump is incomplete, the common rail pressure does not rise to the pressure range necessary for normal use and the engine cannot be started.
Check if the engine starts.
Note
Even if air bleeding using the hand pump has been completed, the starter may need to be cranked for 10 seconds or more to start the engine.
Do not crank the engine continuously for more than 20 seconds. The battery may be discharged.
Use a fully-charged battery.
When the engine can be started, proceed to the next step.
If the engine cannot be started, bleed air again using the hand pump until the hand pump resistance increases (refer to the procedures above). Then start the engine.
Turn the engine switch off.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG) and turn the intelligent tester on.
Clear the DTCs Click here.
Start the engine.*1
| *a | Reference (Active Test Operation) |
Enter the following menus: Powertrain / Engine and ECT / Active Test / Test the Fuel Leak.*2
Perform the following test 5 times with on/off intervals of 10 seconds: Active Test / Test the Fuel Leak.*3
Allow the engine to idle for 3 minutes or more after performing the Active Test for the 5th time.
Tech Tips
When the Active Test "Test the Fuel Leak" is used to change the pump control mode, the actual fuel pressure inside the common rail drops below the target fuel pressure when the Active Test is off, but this is normal and does not indicate a pump malfunction.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read Current DTCs.
Clear the DTCs Click here.
Tech Tips
It is necessary to clear the DTCs as DTC P1604 or P1605 may be stored when air is bled from the fuel system after replacing or repairing fuel system parts.
Repeat steps *1 to *3.
Enter the following menus: Powertrain / Engine and ECT / DTC.
Read Current DTCs.
| OK |
|---|
| No DTCs are output. |
PERFORM REGISTRATION
Perform registration of the injector compensation code Click here.
Perform pilot quantity learning Click here.
INSPECT FOR COOLANT LEAK
Note
Before each inspection, turn the A/C switch off.
CAUTION:
Do not remove the radiator reservoir cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.
Fill the radiator with coolant and attach a radiator cap tester.
Warm up the engine.
Using the radiator cap tester, increase the pressure inside the radiator to 123 kPa (1.3 kgf/cm2, 18 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 head.
INSPECT FOR FUEL LEAK
Perform the Active Test.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Powertrain / Engine and ECT / Active Test.
Perform the Active Test.
| Intelligent Tester Display | Test Part | Control Range | Diagnostic Note |
|---|---|---|---|
| Test the Fuel Leak | Pressurize common rail interior and check for fuel leaks | Stop/Start |
|
INSPECT FOR OIL LEAK
Start the engine. Make sure that there are no oil leaks from the areas that were worked on.
INSPECT ENGINE OIL LEVEL
Warm up the engine, stop the engine and wait 5 minutes. The engine oil level should be between the dipstick low level mark and full level mark.
If low, check for leakage and add oil up to the full level mark.
Note
Do not fill engine oil above the full level mark.