LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2014 >> IS 350 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 18 (Engine Mechanical System (8AR-FTS) - Service Information (1 Of 2)) >> Engine Assembly >> Removal [08/2015 - 10/2016] >> Procedure

Removal [08/2015 - 10/2016]: Procedure

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2024 Lexus IS 300, 2023 Lexus IS 300, 2022 Lexus IS 300, 2021 Lexus IS 300, and 2020 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRECAUTION 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Refer to PRECAUTION [08/2015 - 10/2016]

  2. REMOVE COOL AIR INTAKE DUCT SEAL 

    Refer to PROCEDURE - Step 1

  3. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 
    1. Hold the areas of the No. 1 engine cover sub-assembly shown in the illustration and lift the No. 1 engine cover sub-assembly to disengage the front clips (1) and (2).
      GTY669617Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Areas to be Held when Lifting No. 1 Engine Cover Sub-assembly
    2. With the No. 1 engine cover sub-assembly raised, disengage the rear clip (3) and remove the No. 1 engine cover sub-assembly.
  4. REMOVE INLET NO. 1 AIR CLEANER 
    1. Remove the bolt and inlet No. 1 air cleaner.
      GTY619646Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 

    Refer to PROCEDURE - Step 1

  6. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [08/2015 - 09/2020]

  7. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 

    Refer to ADJUSTMENT [08/2015 - 10/2016]

  8. SECURE STEERING WHEEL 

    Refer to PROCEDURE - Step 4

  9. REMOVE FRONT WHEELS 
  10. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:

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

    Refer to INITIALIZATION [08/2015 - 10/2016]

  11. REMOVE ENGINE UNDER COVER 
    1. Remove the 13 screws, 3 clips and engine under cover.
      GTY674061Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE FRONT SUSPENSION MEMBER BRACE 
    1. Remove the 4 bolts, turn the clip to loosen it, and remove the front suspension member brace.

      HINT: 

      Do not remove the clip from the front suspension member brace.

      GTY619645Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE NO. 2 ENGINE UNDER COVER 
    1. Remove the 4 screws and No. 2 engine under cover.
      GTY674060Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE REAR ENGINE UNDER COVER LH 
    1. Remove the screw and rear engine under cover LH.
      GTY619644Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE REAR ENGINE UNDER COVER RH 

    HINT: 

    Use the same procedure as for the LH side.

  16. DRAIN ENGINE OIL 

    Refer to PROCEDURE - Step 1

  17. DRAIN ENGINE COOLANT 

    Refer to PROCEDURE - Step 2

  18. DRAIN COOLANT (for Intercooler) 

    Refer to PROCEDURE - Step 1

  19. DRAIN AUTOMATIC TRANSMISSION FLUID 

    Refer to PROCEDURE - Step 3

  20. REMOVE AIR CLEANER CAP SUB-ASSEMBLY WITH AIR CLEANER HOSE ASSEMBLY 

    HINT: 

    Perform this procedure only when replacement of the air cleaner filter element sub-assembly or air cleaner case sub-assembly is necessary.

    1. Slide the hose clamp and disconnect the No. 1 ventilation hose from the air cleaner hose assembly.
      GTY654451Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the wire harness clamp and disconnect the connector from the intake mass air flow meter sub-assembly.
    3. Remove the bolt.
    4. Loosen the hose clamp, disengage the 4 clamps and remove the air cleaner cap sub-assembly with air cleaner hose assembly.
  21. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY 

    HINT: 

    Perform this procedure only when replacement of the air cleaner filter element sub-assembly is necessary.

    1. Remove the air cleaner filter element sub-assembly from the air cleaner case sub-assembly.
  22. REMOVE AIR CLEANER CASE SUB-ASSEMBLY 

    HINT: 

    Perform this procedure only when replacement of the air cleaner case sub-assembly is necessary.

    1. Disengage the wire harness clamp and disconnect the air cleaner case sub-assembly.
      GTY627836Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Air Cleaner Support
    2. Remove the 2 bolts and air cleaner case sub-assembly.
      NOTE:

      Make sure the air cleaner support is attached to the vehicle body.

  23. REMOVE AIR CLEANER ASSEMBLY WITH NO. 2 AIR CLEANER HOSE 
    1. Slide the hose clamp and disconnect the No. 1 ventilation hose from the air cleaner hose assembly.
      GTY651598Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Air Cleaner Support
    2. Disengage the 2 wire harness clamps and disconnect the connector from the intake mass air flow meter sub-assembly.
    3. Remove the 3 bolts.
    4. Loosen the hose clamp and remove the air cleaner cap sub-assembly with air cleaner assembly with No. 2 air cleaner hose.
      NOTE:

      Make sure the air cleaner support is attached to the vehicle body.

  24. REMOVE RADIATOR HOSE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 12

  25. DISCONNECT NO. 2 RADIATOR HOSE SUB-ASSEMBLY 
    1. Slide the clip and disconnect the No. 2 radiator hose sub-assembly from water inlet.
      GTY619554Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. REMOVE INTERCOOLER RESERVE TANK ASSEMBLY 

    Refer to PROCEDURE - Step 11

  27. REMOVE V-RIBBED BELT 

    See step  2

  28. DISCONNECT UNION TO CHECK VALVE HOSE 
    1. Slide the clip and disconnect the union to check valve hose from the vacuum pump assembly.
      GTY628783Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and disconnect the union to check valve hose.
  29. DISCONNECT INLET HEATER WATER HOSE A 
    1. Remove the water hose set from the inlet heater water hose A.
      GTY619556Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and disconnect the inlet heater water hose A from the No. 5 water by-pass pipe.
      GTY674040Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  30. DISCONNECT OUTLET HEATER WATER HOSE A 
    1. Remove the water hose set from the outlet heater water hose A.
      GTY674038Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and disconnect the outlet heater water hose A from the No. 5 water by-pass pipe.
      GTY619548Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  31. DISCONNECT NO. 1 FUEL VAPOR FEED HOSE 
    1. Slide the clip and disconnect the No. 1 fuel vapor feed hose from the purge valve (purge VSV).
      GTY619550Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    1. Remove the No. 1 fuel tube clamp from the wire harness clamp bracket.
      GTY621178Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Fuel Tube Clamp
    2. Disconnect the fuel tube sub-assembly from the fuel pump assembly.

      Refer to PROCEDURE - Step 5

    3. Disconnect the fuel tube sub-assembly from the fuel delivery pipe and fuel pump assembly.

      Refer to PROCEDURE - Step 6

  33. DISCONNECT NO. 1 COOLER REFRIGERANT DISCHARGE HOSE 

    Refer to PROCEDURE - Step 6

  34. DISCONNECT SUCTION HOSE 

    Refer to PROCEDURE - Step 8

  35. REMOVE ENGINE ROOM ECU COVER 

    Refer to PROCEDURE - Step 3

  36. DISCONNECT ENGINE WIRE 

    HINT: 

    After disconnecting the wire harness, secure it with tape or equivalent to keep it out of the way.

    1. for RH side:
      1. Remove the nut and disconnect the No. 2 engine wire from the positive (+) battery terminal.
        GTY619579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Disengage the clamp.
      3. Remove the No. 1 engine room relay block cover from the No. 1 engine room relay block and No. 1 junction block assembly.
      4. Remove the nut from the No. 1 engine room relay block and No. 1 junction block assembly.
        GTY619568Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Disengage the 2 claws and disconnect the No. 4 engine wire from the No. 1 engine room relay block.
      6. Disengage the 2 No. 4 engine wire clamps.
      7. Remove the bolt and disconnect the No. 3 engine wire from the engine wire bracket.
        GTY674043Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      8. Disengage the No. 3 engine wire clamp from the engine wire bracket.
    2. for LH side:
      1. Disconnect the 4 engine wire harness connectors.
        GTY619552Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. While pushing the lock on the lever, pull up the lock lever to disconnect the ECM connector.
        GTY656872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Remove the nut and disconnect the engine wire.
        GTY654559Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Disengage the claw and disconnect the engine wire.
  37. DISCONNECT NO. 3 ENGINE WIRE 
    1. Disengage the 2 wire harness clamps and 3 wire harness connectors from the power steering link assembly.

      HINT: 

      For the connector with lock lever, pull up the lock lever to disengage the lock.

      GTY619571Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. REMOVE PROPELLER SHAFT ASSEMBLY WITH CENTER BEARING 

    Refer to REMOVAL [08/2015 - ]

  39. DISCONNECT FRONT SHOCK ABSORBER ASSEMBLY LH 
    1. Remove the bolt and nut, and disconnect the front shock absorber assembly LH from the front suspension lower arm assembly LH.
      NOTE:

      When removing the bolt, keep the nut from rotating.

      GTY460415Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  40. DISCONNECT FRONT SHOCK ABSORBER ASSEMBLY RH 

    HINT: 

    Use the same procedure as for the LH side.

  41. SEPARATE FRONT LOWER BALL JOINT ASSEMBLY LH 

    Refer to PROCEDURE - Step 10

  42. SEPARATE FRONT LOWER BALL JOINT ASSEMBLY RH 

    HINT: 

    Use the same procedure as for the LH side.

  43. REMOVE SUSPENSION TOWER DAMPER 

    Refer to PROCEDURE - Step 2

  44. REMOVE FRONT UPPER NO. 2 SUSPENSION MEMBER 
    1. Remove the 6 bolts and 2 front upper No. 2 suspension members.
      GTY619566Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  45. SEPARATE STEERING SLIDING WITH SHAFT YOKE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 14

  46. SEPARATE FLOOR SHIFT GEAR SHIFTING ROD SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 4

  47. REMOVE FRONT LOWER SUSPENSION MEMBER PROTECTOR 
    1. Remove the 4 bolts and front lower suspension member protector from the front suspension crossmember sub-assembly.
      GTY674042Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  48. REMOVE ENGINE ASSEMBLY WITH TRANSMISSION 
    1. Remove the bolt and disconnect the No. 2 earth wire from the automatic transmission assembly.
      GTY662285Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Place height adjustment attachments and plate lift attachments in the positions shown in the illustration and set an engine lifter underneath the engine assembly with transmission.
      GTY651456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Attachment Installation Position
      NOTE:
      • Using height adjustment attachments and plate lift attachments, place the engine assembly with transmission horizontally.
      • Securely support the engine assembly to prevent it from turning upside down until it is secured to an engine stand.
      • To prevent the oil pan from deforming, do not place any attachments under the oil pan of the engine assembly with transmission.
      • Do not perform any procedure while the engine assembly is suspended because doing so may cause the engine assembly to drop, resulting in injury. However, the engine assembly needs to be suspended when it is installed to or removed from an engine stand.
    3. Remove the 4 bolts, and separate the rear engine mounting member from the vehicle body.
      GTY662286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the 4 bolts and disconnect the front No. 2 stabilizer bracket LH and front No. 2 stabilizer bracket RH.
      GTY656382Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
    5. Remove the 6 bolts, 2 nuts, strut bar bracket reinforcement LH, strut bar bracket reinforcement RH and front suspension crossmember sub-assembly.
    6. Operate the engine lifter and remove the engine assembly with transmission from the vehicle.
      NOTE:
      • Make sure that the engine assembly with transmission is clear of all wiring, hoses and the steering sliding with shaft yoke sub-assembly.
      • After removing the engine assembly with transmission, hang the steering sliding with shaft yoke sub-assembly with rope or equivalent.
  49. INSTALL ENGINE HANGER 
    1. Install the No. 1 engine hanger and No. 2 engine hanger with the 2 bolts as shown in the illustration.
      GTY794103Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Engine Hanger
      *2 No. 2 Engine Hanger

      Torque: 43 N.m (438 kgf/cm, 32 ft.lbf) 

      HINT: 

      Item Part No.
      No. 1 Engine Hanger 12281-36100
      No. 2 Engine Hanger 12282-36101
      Bolt 91552-81025
      91552-81050
    2. Attach an engine sling device and hang the engine assembly with a chain block.
      NOTE:
      • Pay attention to the angle of the sling device as the engine assembly or No. 1 engine hanger and No. 2 engine hanger may be damaged or deformed if the angle is incorrect.
      • Do not perform any procedure while the engine assembly is suspended because doing so may cause the engine assembly to drop, resulting in injury. However, the engine assembly needs to be suspended when it is installed to or removed from an engine stand.
  50. REMOVE ENGINE WIRE 
    1. Remove the engine wire from the engine assembly with transmission.
  51. REMOVE NO. 3 VENTILATION HOSE 
    1. Slide the 2 clips and disconnect the No. 3 ventilation hose from the cylinder head cover sub-assembly and air tube.
      GTY662031Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the clamp to remove the No. 3 ventilation hose.
  52. REMOVE AIR TUBE 
    1. Loosen the 2 hose clamps and remove the 2 bolts and air tube.
      GTY662027Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  53. REMOVE NO. 1 AIR HOSE 
    1. Loosen the hose clamp and remove the No. 1 air hose.
      GTY662026Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  54. REMOVE NO. 2 AIR HOSE 
    1. Loosen the hose clamp and remove the No. 2 air hose.
      GTY683428Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  55. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 

    Refer to PROCEDURE - Step 2

  56. REMOVE NO. 4 EXHAUST MANIFOLD HEAT INSULATOR 

    Refer to PROCEDURE - Step 3

  57. REMOVE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY (TWC: Front and Rear Catalyst) 

    Refer to PROCEDURE - Step 6

  58. DISCONNECT WIRE HARNESS 

    Refer to PROCEDURE - Step 10

  59. DISCONNECT WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 12

  60. REMOVE STARTER ASSEMBLY 

    Refer to PROCEDURE - Step 6

  61. REMOVE FLYWHEEL SIDE COVER 

    Refer to PROCEDURE - Step 15

  62. REMOVE DRIVE PLATE AND TORQUE CONVERTER ASSEMBLY SETTING BOLT 

    Refer to PROCEDURE - Step 16

  63. REMOVE AUTOMATIC TRANSMISSION ASSEMBLY 

    Refer to PROCEDURE - Step 17

  64. REMOVE DRIVE PLATE AND RING GEAR SUB-ASSEMBLY 

    See step  5

  65. DISCONNECT NO. 13 WATER BY-PASS HOSE 
    1. Slide the clip and disconnect the No. 13 water by-pass hose from the No. 1 water by-pass pipe.
      GTY664520Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  66. REMOVE REAR END PLATE 
    1. Remove the 2 bolts and rear end plate.
      GTY613554Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  67. REMOVE FRONT SUSPENSION CROSSMEMBER SUB-ASSEMBLY 
    1. Remove the 2 bolts and front suspension crossmember sub-assembly from the engine assembly.
      GTY674644Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for RH Side
      *B for LH Side
  68. REMOVE FRONT ENGINE MOUNTING INSULATOR 

    HINT: 

    Perform this procedure only when replacement of the front engine mounting insulator is necessary.

    1. Remove the 2 nuts and 2 front engine mounting insulators from the front suspension crossmember sub-assembly.
      GTY678142Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A LH Side
      *B RH Side
  69. REMOVE REAR ENGINE MOUNTING MEMBER 

    HINT: 

    Perform this procedure only when replacement of the rear No. 1 engine mounting insulator is necessary.

    1. Remove the 4 nuts and rear engine mounting member from the rear No. 1 engine mounting insulator.
      GTY662859Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  70. REMOVE REAR NO. 1 ENGINE MOUNTING INSULATOR 

    HINT: 

    Perform this procedure only when replacement of the rear No. 1 engine mounting insulator is necessary.

    1. Remove the 4 bolts and rear No. 1 engine mounting insulator from the automatic transmission assembly.
      GTY616814Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  71. INSTALL ENGINE ASSEMBLY TO ENGINE STAND 
    1. Install the engine to an engine stand.
      NOTE:
      • Pay attention to the angle of the sling device as the engine assembly or engine hangers may be damaged or deformed if the angle is incorrect.
      • Do not perform any procedure while the engine assembly is suspended because doing so may cause the engine assembly to drop, resulting in injury. However, the engine assembly needs to be suspended when it is installed to or removed from an engine stand.
    2. Remove the 2 bolts, No. 1 engine hanger and No. 2 engine hanger.