Section 1614 (Automatic Transmission): Disassembly: Disassembly
WARNING: This page is about a different car, the 2005 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Do not disassemble parts behind drum support. Refer to
"CROSS-SECTIONAL VIEW ".
- Drain ATF through drain plug.
- Remove torque converter by holding it firmly and turning while pulling straight out.
- Check torque converter one-way clutch using a check tool as shown in Fig 2.
- Insert a check tool into the groove of bearing support built into one-way clutch outer race.
- While holding bearing support with a check tool, rotate one-way clutch spline using a suitable tool.
- Make sure that inner race rotates clockwise only. If not, replace torque converter assembly.
- Remove converter housing from transmission case.CAUTION: Be careful not to scratch converter housing.
- Remove O-ring from input clutch assembly.
- Remove bolts for oil pump assembly and transmission case.
- Attach the sliding hammers to oil pump assembly and extract it evenly from transmission case.
- Remove O-ring from oil pump assembly.
- Remove bearing race from oil pump assembly.
- Remove needle bearing from front sun gear.
- Remove front sun gear assembly from front carrier assembly.NOTE: Remove front sun gear by rotating left/right.
- Remove seal rings from input clutch assembly.
- Remove front carrier assembly from rear carrier assembly (with input clutch assembly and rear internal gear).CAUTION: Be careful to remove it with needle bearing.
- Loosen lock nut and remove band servo anchor end pin from transmission case.
- Remove brake band from transmission case.
- To prevent brake linings from cracking or peeling, do not stretch the flexible band unnecessarily. When removing the brake band, always secure it with a clip as shown in Fig 15 . Leave the clip in position after removing the brake band .
- Check brake band facing for damage, cracks, wear or burns .
- Remove mid carrier assembly and rear carrier assembly as a unit.
- Remove mid carrier assembly from rear carrier assembly.
- Remove needle bearing (front side) from mid carrier assembly.
- Remove needle bearing (rear side) from mid carrier assembly.
- Remove bearing race from rear carrier assembly.
- Remove needle bearing from rear carrier assembly.
- Remove mid sun gear assembly, rear sun gear assembly and high and low reverse clutch hub as a unit.CAUTION: Be careful to remove then with bearing race and needle bearing.
- Remove high and low reverse clutch assembly from direct clutch assembly.CAUTION: Make sure that needle bearing is installed to the high and low reverse clutch assembly edge surface.
- Remove needle bearing from drum support.
- Remove direct clutch assembly from reverse brake.
- Remove snap ring from A/T assembly harness connector.
- Push A/T assembly harness connector.CAUTION: Be careful not to damage connector.
- Remove oil pan and oil pan gasket.
- Check for foreign materials in oil pan to help determine cause of malfunction. If the A/T fluid is very dark, smells burned, or contains foreign particles, the friction material (clutches, band) may need replacement. A tacky film that will not wipe clean indicates varnish build up. Varnish can cause valves, servo, and clutches to stick and can inhibit pump pressure.CAUTION: If friction material is detected, flush the transmission cooler after repair. Refer to "A/T FLUID COOLER CLEANING ".
- Remove magnets from oil pan.
- Straighten terminal clips to free terminal cord assembly and A/T fluid temperature sensor 2 harness.
- Disconnect A/T fluid temperature sensor 2 connector.CAUTION: Be careful not to damage connector.
- Straighten terminal clips to free revolution sensor harness.
- Disconnect revolution sensor connector.CAUTION: Be careful not to damage connector.
- Remove bolts A, B and C from control valve with TCM.CONTROL VALVE BOLT LENGTH IDENTIFICATION
Bolt symbol Length mm (in) Number of bolts A 42 (1.65) 5 B 55 (2.17) 6 C 40 (1.57) 1 - Remove control valve with TCM from transmission case.CAUTION: When removing, be careful with the manual valve notch and manual plate height. Remove it vertically.
- Remove A/T fluid temperature sensor 2 with bracket from control valve with TCM.
- Remove bracket from A/T fluid temperature sensor 2.
- Remove O-ring from A/T assembly harness connector.
- Disconnect TCM connectors.CAUTION: Be careful not to damage connectors.
- Remove A/T assembly harness connector from control valve with TCM using suitable tool.
- Disconnect TCM connector and park/neutral position switch connector.CAUTION: Be careful not to damage connectors.
- Remove rear extension assembly (2WD models) or adapter case assembly (4WD models) according to the following procedures.
- 2WD models
- Remove bolts for rear extension assembly and transmission case.
- Tap rear extension assembly using suitable tool.
- Remove rear extension assembly from transmission case (with needle bearing).
- 4WD models
- Remove bolts (1) for adapter case assembly and transmission case [with terminal bracket (2)].
- Self-sealing bolt (3)
- Tap adapter case assembly using suitable tool.
- Remove adapter case assembly from transmission case (with needle bearing).
- Remove gasket from transmission case.
- Remove bolts (1) for adapter case assembly and transmission case [with terminal bracket (2)].
- 2WD models
- Remove bearing race from output shaft.
- Remove output shaft from transmission case by rotating left/right.
- Remove parking gear from output shaft.
- Remove seal rings from output shaft.
- Remove needle bearing from transmission case.
- Remove revolution sensor from transmission case.
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.
- Remove reverse brake snap ring (fixing plate) using suitable tools.
NOTE: Press out snap ring from the transmission case oil pan side gap using a suitable tool, and remove it using another suitable tool.
- Remove reverse brake retaining plate from transmission case.
- Check facing for burns, cracks or damage. If necessary, replace the plate.
- Remove N-spring from transmission case.
- Remove reverse brake drive plates, driven plates and dish plate from transmission case.
- Check facing for burns, cracks or damage. If necessary, replace the plate .
- Remove snap ring (spring retainer) using suitable tool.
- Remove spring retainer and return spring from transmission case.
- Remove seal rings from drum support.
- Remove needle bearing from drum support edge surface.
- Remove reverse brake piston from transmission case with compressed air. Refer to
"OIL CHANNEL ".CAUTION: Care should be taken not to abruptly blow air. It makes pistons incline, as the result, it becomes hard to disassemble the pistons.
- Remove D-rings from reverse brake piston.
- Knock out retaining pin using suitable tool.
- Remove manual shaft retaining pin using suitable tool.
- Remove manual plate (with parking rod) from manual shaft.
- Remove parking rod from manual plate.
- Remove manual shaft from transmission case.
- Remove manual shaft oil seals using suitable tool.CAUTION: Be careful not to scratch transmission case.
- Remove detent spring and spacer from transmission case.
- Remove snap ring from transmission case using suitable tool.
- Remove servo assembly (with return spring) from transmission case.
- Remove return spring from servo assembly.
- Remove O-rings from servo assembly.
- Remove needle bearing (1) from rear extension (2WD models) or adapter case (4WD models).
- Remove parking actuator support from rear extension (2WD models) or adapter case (4WD models).
- Remove parking pawl (with return spring) and pawl shaft from rear extension (2WD models) or adapter case (4WD models).
- Remove return spring (1) from parking pawl (2).
- Remove rear oil seal from rear extension (2WD models) or adapter case (4WD models).CAUTION: Be careful not to scratch rear extension (2WD models) or adapter case (4WD models).