Removal and Installation for VQ40DE 4WD Models
Transmission Assembly: Removal and Installation for VQ40DE 4WD Models
CAUTION:
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS) from the A/T assembly.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.
Removal
1) Disconnect the negative battery terminal. Refer to [Battery: Removal and Installation] Removal and Replacement.
2) Remove the A/T fluid indicator.
3) Remove the front LH wheel and tire assembly. Refer to [Wheel and Tire Assembly: Adjustment] Service and Repair.
4) Remove the front LH mud flap. Refer to [Mudguard: Removal and Installation] Service and Repair.
5) Remove the LH fender protector. Refer to [Front Fender Protector: Removal and Installation] Front Fender Protector Removal and Installation.
6) Remove the crankshaft position sensor (POS) from the A/T assembly.
CAUTION:
- Do not subject it to impact by dropping or hitting it.
- Do not disassemble.
- Do not allow metal filings or debris to get on the sensor's front edge magnetic area.
- Do not place in an area affected by magnetism.
7) Remove the air dam.
8) Remove the front and rear engine under cover using power tool.
9) Remove the front crossmember using power tool.
10) Remove the starter motor.
11) Remove the front and rear propeller shafts. Refer to [Propeller Shaft: Removal and Installation] 2F1310 Type (2F1310), [Propeller Shaft: Removal and Installation] 2S1330 Type (2S1330) or (3S1330-2BJ100) [Rear Propeller Shaft: Removal and Installation] 3S1330-2BJ100 Type.
12) Remove the left and right front exhaust tubes. Refer to [Exhaust System: Removal and Installation] Removal and Installation.
13) Remove the shift selector control cable and bracket from the A/T.
14) Disconnect the fluid cooler tubes from the A/T assembly.
CAUTION:
Do not reuse copper sealing washers.
15) Remove the dust cover from the converter housing.
16) Turn the crankshaft to access and remove the four bolts for the drive plate and torque converter.
CAUTION:
When turning the crankshaft, turn it clockwise as viewed from the front of the engine.
17) Support the A/T assembly using a transmission jack.
CAUTION:
When setting the transmission jack, be careful not to allow it to collide against the drain plug.
18) Remove the nuts securing the insulator to the crossmember.
19) Remove the crossmember using power tool.
20) Tilt the transmission slightly to gain clearance between the body and the transmission, then disconnect the air breather hose.
21) Disconnect the following:
- A/T assembly harness connector
- 4LO switch connector
- Wait detection switch connector
- ATP switch connector
- Transfer control device connector
22) Remove the wiring harness from the retainers.
23) Remove the A/T fluid indicator pipe.
24) Remove the A/T assembly to engine bolts using power tool.
25) Remove A/T assembly with transfer from the vehicle using Tool.
CAUTION:
- Secure the torque converter to prevent it from dropping.
- Secure the A/T assembly to a transmission jack.
NOTE:
The actual special service Tool may differ from Tool shown.
26) Remove the transfer from the A/T assembly. Refer to [Transfer Assembly: Removal and Installation] Removal and Installation.
Inspection
Installation and Inspection of Torque Converter
- After inserting a torque converter to a transmission, be sure to check dimension (A) to ensure it is within the reference value limit.
Installation
Installation of the remaining components is in the reverse order of removal, while paying attention to the following.
- When installing transmission to the engine, tighten the bolts to the specified torque using sequence shown.
- Align the positions of bolts for drive plate with those of the torque converter, and temporarily tighten the bolts. Then, tighten the bolts with the specified torque.
CAUTION:
- When turning crankshaft, turn it clockwise as viewed from the front of the engine.
- After converter is installed to drive plate, rotate crankshaft several turns and check to be sure that transmission rotates freely without binding.
- When replacing an engine or transmission you must make sure the dowels are installed correctly during re-assembly.
- Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drive train components.
- Install crankshaft position sensor (POS).
- After completing installation, check fluid leakage, fluid level, and the positions of A/T. Refer to [Checking the A/T Fluid (ATF)] Checking the A/T Fluid (ATF) , [Shift Control System: Inspection and Adjustment] Procedures.