Shift Solenoid: Service and Repair

SOLENOID VALVES
(Shift solenoid valves & TCC solenoid valve)
INSPECTION





With couplers of PCM disconnected and using service wire as shown at the left, check each solenoid valve for clicking sound.





G16/J20 Engines








H25 Engine

REMOVAL
1) Pull out dipstick and lift up vehicle.
2) With engine cooled, remove drain plug from oil pan and drain A/T fluid.





3) Install drain plug with gasket.
Tightening Torque (a): 23 Nm, (2.3 kg-m, 17.0 ft. lbs.)
4) Remove exhaust pipe bracket and disconnect front propeller shaft from front differential (if equipped).
5) Remove oil pan bolts.
6) Remove oil pan.
7) Remove oil tubes.
8) Remove solenoid valve No. 1 (shift solenoid valve A and B) or solenoid valve No.2 (TCC solenoid valve).

OPERATION CHECK





Whenever shift solenoid valves and TCC (lock-up) solenoid valve are removed from transmission, verify their valve function physically before they are reinstalled.
1) Apply oiler to solenoid valve and give compression by hands and then check to be sure that transmission fluid from oiler does not come out of holes in solenoid valve when battery voltage is not conducted.
2) Under the same conditions as above, conduct battery voltage and then make sure that fluid comes out with vigor.

NOTE:
^ If fluid does not come out with vigor in above step 2 inspection, do not re-use that solenoid valve.
^ Figure at the left shows shift solenoid valve check. Check TCC solenoid valve also in the same way.

INSTALLATION





Reverse removal procedure to install solenoid valves and noting following points.
^ For details of solenoid valve installation, refer to "Automatic Transmission/Transaxle, Service and Repair: Unit Assembly". Use new gasket and O-ring.
^ Install oil tubes in such order as shown in figure.
^ For details of oil pan installation, refer to "Automatic Transmission/Transaxle, Service and Repair: Unit Assembly". Use new oil pan gasket.
^ Tighten universal joint flange bolts & nuts and exhaust pipe bracket bolts to specified torque.
^ Fill A/T fluid and check fluid level.
^ Check for fluid leakage after warming up A/T.