Installation [09/2014 - 11/2017]: Procedure

WARNING: This page is about a different car, the 2017 Lexus RC 350, 2017 Lexus RC 300, 2016 Lexus RC 350, 2016 Lexus RC 300, and 2015 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.

INSTALL STUD BOLT

HINT:

If a stud bolt is deformed or the threads are damaged, replace it.

Using an E8 "TORX" socket wrench, install the 2 stud bolts to the intake manifold.

Torque: 4.0 N.m (41 kgf/cm, 35 in.lbf)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSTALL INTAKE MANIFOLD

Install a new No. 1 intake manifold to head gasket to each cylinder head sub-assembly.
NOTE:
- Align the port holes of the No. 1 intake manifold to head gaskets with those of the cylinder head sub-assembly.
- Make sure that the 2 No. 1 intake manifold to head gaskets are installed in the correct direction.
Temporarily install the intake manifold to the cylinder head sub-assembly with the 4 bolts and 4 nuts.

Tighten the 4 bolts and 4 nuts in the order shown in the illustration.

Torque: 21 N.m (214 kgf/cm, 15 ft.lbf)

Fig 1: Intake Manifold Bolts And Nuts Tightening Sequence

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

	Bolt
	Nut
	Front

INSTALL FUEL DELIVERY PIPE SUB-ASSEMBLY
Refer to PROCEDURE - Step 2
CONNECT ENGINE WIRE
Refer to PROCEDURE - Step 3
CONNECT FUEL TUBE SUB-ASSEMBLY
Refer to PROCEDURE - Step 4

INSTALL INTAKE AIR SURGE TANK ASSEMBLY

NOTE:

Do not apply oil to the following bolts and nuts:

Oil Application Prohibited Bolt and Nut
Bolt and Nut for Intake Air Surge Tank Assembly and Intake Manifold
Bolt for No. 2 Surge Tank Stay and Intake Air Surge Tank Assembly

Install the plug to the intake air surge tank assembly and slide the clip to secure it.
Install a new air surge tank to intake manifold gasket to the intake air surge tank assembly.
Temporarily install the intake air surge tank assembly to the intake manifold with the 6 bolts and 2 nuts.

Using a 5 mm hexagon socket wrench, tighten the 6 bolts in the order shown in the illustration.

Fig 2: Intake Air Surge Tank Assembly Bolts And Nuts Tightening Sequence

	Bolt
	Nut

Torque: 18 N.m (184 kgf/cm, 13 ft.lbf)

Tighten the 2 nuts in the order shown in the illustration.
Torque: 16 N.m (163 kgf/cm, 12 ft.lbf)
Connect the No. 2 surge tank stay to the intake air surge tank assembly with the bolt.
Torque: 21 N.m (214 kgf/cm, 15 ft.lbf)
Connect the No. 3 water by-pass pipe to the intake air surge tank assembly with the bolt.
Torque: 10 N.m (102 kgf/cm, 7 ft.lbf)
Engage the 4 wire harness clamps to the intake air surge tank assembly.
Connect the No. 2 water by-pass hose to the intake air surge tank assembly clamp.
Connect the union to check valve hose to the intake air surge tank assembly and slide the clip to secure it.
Connect the ventilation hose assembly to the PCV valve (ventilation valve sub-assembly) and slide the clip to secure it.
Install the purge valve (purge VSV) to the intake air surge tank assembly with the bolt.
Torque: 18 N.m (184 kgf/cm, 13 ft.lbf)
Connect the No. 1 fuel vapor feed hose to the purge valve (purge VSV).
Connect the purge valve (purge VSV) connector.

INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY
Refer to INSTALLATION [09/2014 - ]
INSTALL THROTTLE BODY WITH MOTOR ASSEMBLY
Refer to INSTALLATION [09/2014 - 10/2015] , or refer to INSTALLATION [10/2015 - 11/2017]
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Refer to INITIALIZATION [09/2014 - 10/2015] , or refer to INITIALIZATION [10/2015 - 11/2017]
INSPECT FOR FUEL LEAK
Refer to PROCEDURE - Step 1