Installation [10/2022 - ]: Procedure

INSTALL EGR COOLER ASSEMBLY

Using an 8 mm socket wrench, loosen the 4 bolts of the No. 1 EGR pipe sub-assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

As the bolts of the No. 1 EGR pipe sub-assembly are only to be loosened, it is not necessary to replace the EGR inlet gasket and EGR valve adapter gasket.
If the No. 1 EGR pipe sub-assembly is removed, it is necessary to replace the EGR inlet gasket and EGR valve adapter gasket with new ones.

Using an 8 mm socket wrench, loosen the 2 bolts of the EGR valve assembly.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Install a new EGR cooler gasket to the EGR cooler assembly.

NOTE:

Make sure that the claws of the EGR cooler gasket are toward the EGR cooler assembly side.

Claw

Install a new EGR valve gasket to the EGR cooler assembly.
NOTE:
Make sure that the claws of the EGR valve gasket are toward the EGR cooler assembly side.
Type A:

Fig 1: EGR Cooler Assembly Tightening Sequence
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a Bolt or Nut
1. Temporarily install the EGR cooler assembly to the cylinder head sub-assembly and EGR valve assembly with the 3 bolts and 2 nuts.
2. Tighten the 3 bolts and 2 nuts in the order shown in the illustration.
  Torque: 24 N*m (245 kgf*cm, 18 ft.*lbf)
Type B:
1. Temporarily install the EGR cooler assembly to the cylinder head sub-assembly and EGR valve assembly with the 2 bolts and 3 nuts.
2. Tighten the 2 bolts and 3 nuts in the order shown in the illustration.
  Torque: 24 N*m (245 kgf*cm, 18 ft.*lbf)
Connect the No. 3 water by-pass hose and No. 4 water by-pass hose to the EGR cooler assembly and slide the 2 clips to secure them.
Using an 8 mm socket wrench, tighten the 2 bolts of the EGR valve assembly.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)
Using an 8 mm socket wrench, tighten the 4 bolts of the No. 1 EGR pipe sub-assembly.
Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf)