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Automatic Transaxle: Removal & Installation Infiniti M45 II

Automatic Trans 12 illustrations ~362 words

Precautions for A/T Assembly Replacement

CAUTIONCheck data (Unit ID) in TCM with data monitor of CONSULT-II before replacing A/T assembly or control valve assembly. Check if new data (Unit ID) are entered correctly after replacing A/T assembly or control valve assembly and erasing data in TCM. When replacing A/T assembly, control valve assembly or TCM, refer to the pattern table below and erase the EEPROM in the TCM if necessary.

Scheme 195

Scheme 195: EEPROM ERASING PATTERNS

REMOVAL

  1. Disconnect lower lever of control device and control rod.
  2. Remove console finisher. Refer to "INSTRUMENT PANEL ASSEMBLY ".
  3. Remove console box assembly. Refer to "INSTRUMENT PANEL ASSEMBLY ".
  4. Remove rear ventilator duct. Refer to "REAR VENTILATOR DUCTS ".
  5. Disconnect control device harness connector.
  6. Remove control device assembly.

INSTALLATION

Install in reverse order of removal. Be careful of the following

  1. After installation is completed, adjust and check A/T position.

Removal and Installation

CAUTIONWhen installing an air breather hose, be careful not to be crushed or blocked by folding or bending the hose. When inserting a hose to the transmission tube, be sure to insert it fully until its end reaches the tube bend R portion. When inserting a hose to the air breather tube, be sure to insert it fully until its end reaches the tube spool portion.

Refer to the figure below for air breather hose removal and installation procedure.

Scheme 196

Scheme 196

Scheme 197

Scheme 197: Removal and Installation
CAUTIONWhen removing the A/T assembly from engine, first remove the crankshaft position sensor (POS) from the A/T assembly.

Be careful not to damage sensor edge.

Scheme 198

Scheme 198
  1. Disconnect the negative battery terminal.
  2. Remove engine under cover with power tool.
  3. Remove exhaust tube with power tool. Refer to "EXHAUST SYSTEM ".
  4. Remove propeller shaft. Refer to "REAR PROPELLER SHAFT ".
  5. Remove A/T control rod. Refer to " «SHIFT CONTROL SYSTEM»(ref-181179-S21075218042005080100000) ".
  6. Disconnect A/T solenoid valve harness connectors.
  7. Remove crankshaft position sensor (POS) from A/T assembly.
  8. Remove fluid cooler tube and A/T fluid charging pipe.
  9. Plug up openings such as the fluid charging pipe hole, etc.
  10. Remove air breather hose. Refer to " «AIR BREATHER HOSE»(ref-181179-S04839831292005080100000) ".
  11. Remove starter motor. Refer to "STARTING SYSTEM ".
  12. Remove dust cover from converter housing part.
  13. Turn crankshaft, and remove the four tightening bolts for drive plate and torque converter.
  14. Support A/T assembly with a jack.
  15. Remove engine rear member with power tool.
  16. Remove bolts fixing A/T assembly to engine with power tool.
  17. Remove A/T assembly from vehicle with a jack. Secure torque converter to prevent it from dropping. Secure A/T assembly to a jack.

Install the removed parts in the reverse order of the removal, while paying attention to the following work.

Scheme 199

Scheme 199: INSTALLATION

Scheme 200

Scheme 200
  1. When installing transmission to the engine, attach the fixing bolts in accordance with the following standard.
  2. Align the positions of tightening bolts for drive plate with those of the torque converter, and temporarily tighten the bolts. Then, tighten the bolts with the specified torque. 44 - 58 N.m (4.5 - 5.9 kg-m, 33 - 42 ft-lb)

Scheme 201

Scheme 201

Scheme 202

Scheme 202: Components

Scheme 203

Scheme 203

Scheme 204

Scheme 204

Scheme 205

Scheme 205: Oil Channel

Scheme 206

Scheme 206: Locations of Adjusting Shims, Needle Bearings, Thrust Washers and Snap Rings