Lexus NX: Removal
REMOVAL
CAUTION / NOTICE / HINT
CAUTION:
As the engine assembly with transaxle is extremely heavy, the engine lifter may suddenly drop if the instructions listed in the repair manual are not followed. Therefore, always follow the instructions listed in the repair manual when performing this procedure.
PROCEDURE
1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM
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2. DISCHARGE FUEL SYSTEM PRESSURE
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3. PRECAUTION
NOTICE:
After turning the power switch is turned off, there may be a waiting time before disconnecting the auxiliary negative (-) battery terminal.
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4. REMOVE NO. 3 DECK BOARD SUB-ASSEMBLY
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5. REMOVE REAR DECK FLOOR BOX
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6. REMOVE DECK FLOOR BOX LH
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7. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
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8. REMOVE BATTERY SERVICE HOLE COVER
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9. REMOVE HYBRID BATTERY SERVICE PLUG COVER
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10. REMOVE SERVICE PLUG GRIP
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11. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD
12. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY
| (a) Remove the 2 screws, 4 bolts, 3 clips and No. 1 engine under cover assembly. |
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13. REMOVE REAR ENGINE UNDER COVER RH
| (a) Remove the 4 clips and rear engine under cover RH. |
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14. REMOVE REAR ENGINE UNDER COVER LH
| (a) Remove the 4 clips and rear engine under cover LH. |
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15. REMOVE FRONT FLOOR COVER CENTER LH
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16. DRAIN ENGINE COOLANT
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17. DRAIN ENGINE OIL
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18. DRAIN COOLANT (for Inverter Coolant)
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19. DRAIN HYBRID TRANSAXLE FLUID
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20. REMOVE RADIATOR SUPPORT OPENING COVER
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21. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY
| (a) Remove the 3 pins and the No. 1 engine cover sub-assembly. NOTICE: Be sure to lift the No. 1 engine cover sub-assembly upwards when removing. Pulling the No. 1 engine cover sub-assembly towards you may damage the No. 1 engine cover sub-assembly. |
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22. REMOVE AIR CLEANER CAP SUB-ASSEMBLY
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23. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY
(a) Remove the air cleaner filter element sub-assembly.
24. REMOVE AIR CLEANER CASE SUB-ASSEMBLY
| (a) Remove the 2 bolts and the air cleaner case sub-assembly. |
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25. REMOVE INVERTER WITH CONVERTER ASSEMBLY
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26. DISCONNECT NO. 2 FLOOR WIRE
CAUTION:
Be sure to wear insulated gloves.
NOTICE:
Wrap insulation tape round the removed terminals to insulate them.
| (a) Disconnect the 2 clamps and No. 2 floor wire from the inverter bracket. |
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| (b) Remove the bolt. |
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| (c) Disconnect the 2 clamps and No. 2 floor wire from the hybrid vehicle transaxle assembly. |
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27. REMOVE INVERTER WATER PUMP WITH MOTOR ASSEMBLY
| (a) Remove the 2 bolts and the inverter water pump with motor assembly from the inverter bracket. |
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28. REMOVE INVERTER BRACKET ASSEMBLY
| (a) Remove the 5 bolts and inverter bracket assembly. |
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29. REMOVE ECM
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30. DISCONNECT RADIATOR RESERVE TANK ASSEMBLY
(a) Remove the 2 bolts and disconnect the radiator reserve tank assembly.
31. REMOVE FAN AND GENERATOR V BELT
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32. DISCONNECT NO. 2 RADIATOR HOSE
| (a) Slide the hose clip and disconnect the No. 2 radiator hose from the water inlet. |
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33. REMOVE RADIATOR HOSE HOSE CLAMP
| (a) Remove the radiator hose hose clamp. |
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34. DISCONNECT NO. 1 RADIATOR HOSE
| (a) Slide the hose clip and disconnect the No. 1 radiator hose from the cylinder head sub-assembly. |
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35. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY
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36. DISCONNECT SUCTION HOSE SUB-ASSEMBLY
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37. REMOVE NO. 3 INVERTER COOLING HOSE
| (a) Slide the hose clip and remove the No. 3 inverter cooling hose from the hybrid vehicle transaxle assembly. |
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38. REMOVE NO. 5 INVERTER COOLING HOSE
| (a) Slide the hose clip and remove the No. 5 inverter cooling hose from the transmission oil cooler assembly. |
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39. DISCONNECT GROUND WIRE
| (a) Remove the bolt, detach the 2 wire harness clamps and disconnect the ground wire. |
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40. DISCONNECT WIRE HARNESS
| (a) Remove the bolt, detach the 3 wire harness clamps and disconnect the wire harness. |
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| (b) Remove the nut. |
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(c) Disconnect the 3 connectors and detach the 2 claws to disconnect the wire harness from the No. 1 engine room relay block.
| (d) Disconnect the terminal from the No. 1 engine room relay block side cover as shown in the illustration. |
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41. DISCONNECT FUEL TUBE SUB-ASSEMBLY
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42. DISCONNECT HEATER WATER INLET HOSE
| (a) Slide the hose clamp and disconnect the heater water inlet hose from the cylinder head sub-assembly. |
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43. DISCONNECT HEATER WATER OUTLET HOSE
| (a) Slide the hose clamp and disconnect the heater water outlet hose from the No. 1 EGR pipe. |
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44. DISCONNECT TRANSMISSION CONTROL CABLE ASSEMBLY
| (a) Detach the clamp and disconnect the transmission control cable assembly from the bracket. |
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(b) Remove the 2 bolts and disconnect the transmission control cable assembly from the hybrid vehicle transaxle assembly and rear engine mounting insulator.
| (c) Remove the nut and disconnect the transmission control cable assembly from the control shaft lever. |
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(d) Remove the clip and disconnect the transmission control cable assembly from the control cable bracket.
45. REMOVE COLUMN HOLE COVER SILENCER SHEET
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46. DISCONNECT NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY
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47. DISCONNECT NO. 1 STEERING COLUMN HOLE COVER SUB-ASSEMBLY
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48. REMOVE FRONT AXLE SHAFT NUT LH
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49. REMOVE FRONT AXLE SHAFT NUT RH
HINT:
Use the same procedure described for the LH side.
50. DISCONNECT FRONT SPEED SENSOR LH
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51. DISCONNECT FRONT SPEED SENSOR RH
HINT:
Use the same procedure described for the LH side.
52. DISCONNECT FRONT STABILIZER LINK ASSEMBLY LH
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53. DISCONNECT FRONT STABILIZER LINK ASSEMBLY RH
HINT:
Use the same procedure described for the LH side.
54. DISCONNECT TIE ROD END SUB-ASSEMBLY LH
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55. DISCONNECT TIE ROD END SUB-ASSEMBLY RH
HINT:
Use the same procedure described for the LH side.
56. DISCONNECT FRONT LOWER NO. 1 SUSPENSION ARM SUB-ASSEMBLY LH
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57. DISCONNECT FRONT LOWER NO. 1 SUSPENSION ARM SUB-ASSEMBLY RH
HINT:
Use the same procedure described for the LH side.
58. REMOVE FRONT DRIVE SHAFT ASSEMBLY LH
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59. REMOVE FRONT DRIVE SHAFT HOLE SNAP RING LH
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60. REMOVE FRONT DRIVE SHAFT ASSEMBLY RH
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61. REMOVE FLYWHEEL HOUSING UNDER COVER
| (a) Remove the flywheel housing under cover. |
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62. REMOVE FRONT EXHAUST PIPE SUB-ASSEMBLY
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63. REMOVE FRONT SUSPENSION MEMBER REINFORCEMENT LH
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64. REMOVE FRONT SUSPENSION MEMBER REINFORCEMENT RH
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65. INSTALL ENGINE HANGER
| (a) Install the 2 engine hangers with the 2 bolts as shown in the illustration. Torque: 43 N·m {438 kgf·cm, 32 ft·lbf}
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66. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
| (a) Remove the 6 bolts and front crossmember sub-assembly. |
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| (b) Remove the through bolt, nut and front engine mounting insulator. NOTICE: While holding the nut in place, loosen the through bolt. |
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(c) Set an engine lifter underneath the engine.
NOTICE:
- Place the engine on wooden blocks or equivalent so that the engine is level.
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To prevent coolant leaks, do not position the height adjustment attachments or plate lift attachments under the No. 2 motor water jacket cover assembly.
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No. 2 Motor Water Jacket Cover Assembly
| (d) Remove the bolt and 2 nuts and disconnect the engine mounting insulator sub-assembly RH. |
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| (e) Remove the through bolt and nut and disconnect the engine mounting insulator LH. |
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| (f) Remove the 6 bolts, front suspension member rear brace RH and front suspension member rear brace LH. |
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| (g) Remove the 2 bolts and front suspension crossmember sub-assembly. |
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(h) Operate the engine lifter and slowly remove the engine from the vehicle.
NOTICE:
- Make sure that the engine is clear of all wiring and hoses.
- While lowering the engine from the vehicle, do not allow it to contact the vehicle.
(i) Attach an engine sling device and hang the engine with a chain block.
| (j) Remove the through bolt, nut and front suspension crossmember sub-assembly from the engine with transaxle. NOTICE: Do not damage any engine or transaxle components. HINT: Raise the engine with transaxle assembly while keeping it level. |
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67. DISCONNECT WIRE HARNESS
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68. REMOVE TRANSMISSION OIL COOLER ASSEMBLY
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69. REMOVE HYBRID VEHICLE TRANSAXLE ASSEMBLY
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70. FIX ENGINE ASSEMBLY
(a) Using wooden blocks or plate lift attachments, set the engine on a flat surface.
NOTICE:
- Place wooden blocks or plate lift attachments so that the engine is level.
- Never install attachments to the oil pan sub-assembly of the engine assembly or transaxle as doing so may deform the oil pan.
- Perform this step while supporting the engine assembly using a sling device and chain block.
71. REMOVE TRANSMISSION INPUT DAMPER ASSEMBLY
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72. REMOVE FLYWHEEL SUB-ASSEMBLY
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73. REMOVE ENGINE WIRE
74. INSTALL ENGINE TO ENGINE STAND
NOTICE:
- 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.
- With the exception of installing the engine assembly to an engine stand or removing the engine assembly from an engine stand, do not perform any work on the engine while it is suspended, as doing so is dangerous.
(a) Install the engine to an engine stand with the bolts.
(b) Remove the 2 bolts and 2 engine hangers.
75. REMOVE REAR ENGINE MOUNTING INSULATOR
HINT:
Perform this procedure only when replacement of the rear engine mounting insulator is necessary.
| (a) Remove the 2 bolts, 2 nuts and rear engine mounting insulator. |
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76. REMOVE ENGINE MOUNTING INSULATOR SUB-ASSEMBLY RH
HINT:
Perform this procedure only when replacement of the engine mounting insulator sub-assembly RH is necessary.
| (a) Remove the bolt and radiator reservoir bracket. |
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(b) Remove the 3 bolts and engine mounting insulator sub-assembly RH.
77. REMOVE ENGINE MOUNTING SPACER
HINT:
Perform this procedure only when replacement of the engine mounting spacer is necessary.
| (a) Remove the 2 bolts and engine mounting spacer. |
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78. REMOVE ENGINE MOUNTING INSULATOR LH
HINT:
Perform this procedure only when replacement of the engine mounting insulator LH is necessary.
| (a) Remove the 4 bolts and engine mounting insulator LH. |
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79. REMOVE DRIVE SHAFT BEARING BRACKET
| (a) Remove the 3 bolts and drive shaft bearing bracket. |
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