Toyota Sienna Quiz
Engine

Installation

In this manual: Engine
Introduction — 55Service specifications — 7Maintenance — 7Engine — 264U151e automatic transaxle — 108Transfer — 19Propeller shaft — 8Drive shaft — 14Differential — 16Axle — 18Suspension — 37Tire and wheel — 54Brake control — 141Parking brake — 16Steering Column — 11Power steering — 18Air conditioning — 106Supplemental restraint system — 146Seat belt — 22Theft deterrent — 14Engine immobiliser — 17Cruise control — 65Lighting — 61Wiper and washer — 13Door lock — 42Meter — 28Audio / visual — 94Navigation — 108Park assist / monitoring — 33Horn — 5Garage door opener — 42GR-FE Engine control system — 126Supplemental restraint system — 147Other system — 14Windshield / windowglass — 43Mirror — 23Instrument panel — 6Seat belt — 22Seat — 92Engine hood / door — 104Exterior — 39Interior — 5Sliding roof — 9Multiplex communication — 18Can communication — 23
~2min read
1special tools

1. Install air fuel ratio sensor (for bank 2 sensor 1)

Install air fuel ratio sensor (for bank 2 sensor 1)

(a) Using SST, install the sensor to the exhaust manifold LH.

SST 09224-00010

Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use with SST 44 N*m (449 kgf*cm, 32 ft.*lbf) for use without SST

HINT:

  • Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).
  • Make sure that SST and a wrench are connected in a straight line.

(b) Connect the sensor connector

2. INSTALL AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1)

INSTALL AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1)

(a) Using SST, install the sensor to the exhaust manifold RH.

SST 09224-00010

Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use with SST

44 N*m (449 kgf*cm, 32 ft.*lbf) for use without SST

HINT:

  • Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).
  • Make sure that SST and wrench are connected in a straight line.

3. INSTALL EXHAUST MANIFOLD RH

INSTALL EXHAUST MANIFOLD RH

(a) Install the exhaust manifold RH with a new gasket and 6 nuts.

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

INSTALL EXHAUST MANIFOLD RH

(b) Install the exhaust manifold stay with the nut and bolt.

Torque: 35 N*m (357 kgf*cm, 26 ft.*lbf) (c) Connect the air fuel ratio sensor (for Bank 1 Sensor 2) connector.

4. INSTALL FRONT EXHAUST PIPE ASSEMBLY

INSTALL FRONT EXHAUST PIPE ASSEMBLY

(a) Check compression springs.

(1) Check the compression springs using vernier calipers.

Specified length: 38.86 mm (1.5299 in.)

HINT:

If the result is not as specified, replace the compression spring.

INSTALL FRONT EXHAUST PIPE ASSEMBLY

(b) Install the gasket.

(1) Install a new gasket by hand onto the front exhaust pipe assembly.

(2) Using a plastic hammer and wooden block, tap in the new gasket until its surface is flush with the front exhaust pipe.

NOTICE:
  • Be careful with the installation direction of the gasket.
  • Do not damage the gasket.
  • Do not reuse the gasket.
  • To ensure a proper seal, do not use the exhaust pipe to force the gasket on to the front exhaust pipe.

(c) Install 2 new gaskets to the front exhaust pipe assembly.

(d) Install the front exhaust pipe assembly with the 4 nuts.

Torque: 62 N*m (632 kgf*cm, 46 ft.*lbf)

INSTALL FRONT EXHAUST PIPE ASSEMBLY
INSTALL FRONT EXHAUST PIPE ASSEMBLY

(e) Install the center exhaust pipe assembly with the 2 compression springs and 2 bolts.

Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf) (f) Install the No. 1 exhaust pipe support bracket with the 2 new nuts.

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

INSTALL FRONT EXHAUST PIPE ASSEMBLY

(g) Connect the heated oxygen sensor (for Bank 1 sensor 2) connector

5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

6. INSPECT FOR EXHAUST GAS LEAK

Test yourself

A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.