Transmission Speed Sensor: Service and Repair
REVOLUTION SENSORTM-180 Exploded View:
2WD: Removal and Installation
REMOVAL
1. Disconnect the battery cable from the negative terminal.
2. Drain ATF through drain plug.
3. Remove exhaust front tube and center muffler with power tool.
4. Remove rear propeller shaft.
5. Remove control rod.
6. Remove exhaust mounting bracket.
7. Disconnect heated oxygen sensor 2 harness connectors (A).
<---: Vehicle front
<---: Bolt
8. Remove heated oxygen sensor 2 harness (B) from clips (1).
9. Remove bracket (2) from transmission assembly.
10. Remove clips (1).
3: Drain plug
<---: Vehicle front
<---: Oil pan mounting bolt
11. Remove oil pan (2) and oil pan gasket.
12. Support A/T assembly with a transmission jack.
CAUTION: When setting transmission jack, place wooden blocks to prevent from damaging control valve with TCM and transmission case.
13. Remove rear engine mounting member with power tool.
14. Remove engine mounting insulator (rear).
15. Remove tightening bolts for rear extension assembly and transmission case.
1: Self-sealing bolt
A: Bolt
16. Tap rear extension assembly with a soft hammer (A).
17. Remove rear extension assembly (with needle bearing) from transmission case.
18. Disconnect revolution sensor connector (A).
CAUTION: Be careful not to damage connector
19. Disengage terminal clip (<---).
20. Remove revolution sensor (1) from transmission case.
<---: Bolt
CAUTION:
^ Do not subject it to impact by dropping or hitting it.
^ Do not disassemble.
^ Do not allow metal filings, etc. to get on the sensor's front edge magnetic area.
^ Do not place in an area affected by magnetism.
INSTALLATION
Note the following, and install in the reverse order removal.
CAUTION:
^ Insert the tip of parking rod between the parking pole and the parking actuator support when assembling the rear extension assembly.
^ Do not reuse drain plug gasket.
^ Refer to the followings when revolution sensor.
CAUTION:
^ Do not subject it to impact by dropping or hitting it.
^ Do not disassemble.
^ Do not allow metal filings, etc. to get on the sensor's front edge magnetic area.
^ Do not place in an area affected by magnetism.
^ Refer to the followings when installing rear extension assembly.
- Apply recommended sealant (Genuine Anaerobic Liquid Gasket or equivalent.) to rear extension assembly as shown in the figure.
A: Start and finish point shall be in the center of two bolts.
B: 3 - 5 mm (0.12 - 0.20 in)
Sealant width (C): 1.0 - 2.0 mm (0.04 - 0.08 in)
Sealant height (C): 0.4 - 1.0 mm (0.016 - 0.04 in)
CAUTION: Completely remove all moisture, oil and old sealant, etc. from transmission case and rear extension assembly mounting surfaces.
- Tighten rear extension assembly bolts to the specified torque.
1: Self-searing bolt
A: Bolt
^ Refer to the followings when installing oil pan (2) (with oil pan gasket) and clips (1) to transmission case.
<---: Vehicle front
<---: Oil pan mounting bolt
CAUTION:
^ Do not reuse oil pan gasket and oil pan mounting gasket.
^ Install oil pan gasket in the direction to align hole position.
^ Install it so that drain plug (3) comes to the position as shown in the figure.
^ Be careful not to pinch harnesses.
^ Completely remove all moisture, oil and old gasket, etc. from oil pan mounting surface.
- Tighten oil pan mounting bolts to the specified torque in numerical order shown in the figure after temporarily tightening them. Tighten necessary oil pan mounting bolts with specified torque.
<---: Vehicle front
2WD: Inspection
INSPECTION AFTER REMOVAL
Check foreign materials in oil pan to help determine causes of malfunction. If the ATF is very dark, smells burned, or contains foreign particles, the frictional 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.
^ If frictional material is detected, perform A/T fluid cooler cleaning. Refer to TM-143, "Cleaning". Service and Repair
INSPECTION AFTER INSTALLATION
Check the following item after completing installation.
^ A/T fluid leakage and A/T fluid level. Refer to TM-141, "Inspection". Procedures
^ A/T position. Refer to TM-153, "2WD: Inspection and Adjustment". Testing and Inspection