Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Installation

INSTALLATION

PROCEDURE

1. INSTALL VACUUM PUMP ASSEMBLY

(a) When using a new vacuum pump assembly:

(1) Apply engine oil to the No. 2 O-ring and No. 3 O-ring which are installed to a new vacuum pump assembly.

*1

No. 2 O-ring

*2

No. 3 O-ring

Engine oil

(b) When reusing the vacuum pump assembly:

(1) Apply engine oil to a new No. 2 O-ring and No. 3 O-ring and install them to the vacuum pump assembly.

*1

No. 2 O-ring

*2

No. 3 O-ring

Engine oil

(c) Apply engine oil to the inner surface of the installation hole.

(d) Install the vacuum pump assembly so that the oil pipe engages with the hole of the camshaft and the coupling teeth with the grooves on the camshaft tip.

NOTICE:

  • Ensure that the vacuum pump assembly is installed securely.
  • Be careful not to pinch the O-ring.

*a

Coupling Teeth

*b

Groove

(e) Install the vacuum pump assembly with the 3 bolts.

Torque:

21 N·m {214 kgf·cm, 15 ft·lbf}

NOTICE:

After installation, check that there are no gaps between the matching surfaces and that the vacuum pump assembly is not installed at an angle.

2. INSTALL ENGINE WIRE

(a) Install the engine wire with the bolt and nut.

Bolt

Nut

Torque:

8.35 N·m {85 kgf·cm, 74 in·lbf}

(b) Install the 3 bolts and nut.

Connector

Bolt

Nut

Torque:

Bolt :

19.1 N·m {195 kgf·cm, 14 ft·lbf}

Nut :

9.8 N·m {100 kgf·cm, 87 in·lbf}

(c) Connect the 3 connectors.

(d) Install the 2 nuts.

Torque:

8.35 N·m {85 kgf·cm, 74 in·lbf}

(e) Engage the 2 clamps.

(f) Install the bolt.

Connector

Bolt

Torque:

8.35 N·m {85 kgf·cm, 74 in·lbf}

(g) Connect the 5 connectors.

(h) Install the 2 bolts.

Connector

Bolt

Torque:

8.35 N·m {85 kgf·cm, 74 in·lbf}

(i) Engage the 2 clamps and claw.

(j) Connect the 8 connectors.

(k) Install the bolt.

Connector

Bolt

Torque:

8.35 N·m {85 kgf·cm, 74 in·lbf}

(l) Engage the clamp.

(m) Connect the 2 connectors.

3. INSTALL NO. 2 ENGINE UNDER COVER

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4. CONNECT VACUUM HOSE SUB-ASSEMBLY

(a) Connect the vacuum hose sub-assembly.

5. CONNECT HEATER WATER HOSE

(a) Connect the inlet heater water hose and outlet heater water hose, and slide the 2 clips to secure them.

*1

Inlet Heater Water Hose

*2

Outlet Heater Water Hose

(b) Engage the clamp.

6. CONNECT VENTILATION HOSE

(a) Connect the ventilation hose, and slide the clip to secure it.

7. CONNECT AIR TUBE

(a) Connect the air tube to the vacuum pump assembly, and slide the clip to secure it.

8. INSTALL TRANSMISSION CONTROL CABLE ASSEMBLY

(a) Install a new clip to the No. 1 transmission control cable bracket.

(b) Connect the transmission control cable assembly to the No. 1 transmission control cable bracket.

NOTICE:

  • Make sure that the claws (A) of the clip are securely fit into the bracket holes.
  • Make sure that the transmission control cable assembly is securely installed inside of the claws (B) of the clip.

*1

Transmission Control Cable Assembly

*2

No. 1 Transmission Control Cable Bracket

*a

Claw (A)

*b

Claw (B)

(c) Connect the transmission control cable assembly to the transmission control shaft lever with the nut.

Torque:

12 N·m {122 kgf·cm, 9 ft·lbf}

9. INSTALL AIR CLEANER BRACKET

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10. INSTALL AIR CLEANER CASE SUB-ASSEMBLY

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11. INSTALL AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

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12. INSTALL INLET AIR CLEANER ASSEMBLY

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13. INSTALL V-BANK COVER SUB-ASSEMBLY

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14. INSTALL COOL AIR INTAKE DUCT SEAL

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15. INSTALL FRONT WHEEL LH

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16. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

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17. INSTALL THROTTLE BODY WITH MOTOR ASSEMBLY

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18. INSPECT VACUUM PUMP OPERATION

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    Removal
    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during vacuum ...

    Vacuum Warning Switch
    ...

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