Control Valve Body
CONTROL VALVE BODY REMOVAL / INSTALLATIONNote:
^ When the battery has been disconnected and reconnected, some abnormal drive symptoms can occur while the vehicle relearns its adaptive strategy. The customer needs to be notified that they may experience slightly different upshifts either soft or firm and this is a temporary condition and will eventually return to normal operating condition.
1. Disconnect the negative battery cable.
2. Raise and support the vehicle.
Note:
^ If a transmission has been disassembled to replace worn or damaged parts and the valves in the main control valve body stick repeatedly from foreign material, the torque converter must be removed and cleaned by using a mechanically agitated cleaner, such as the Torque Converter/Fluid Cooler Cleaner.
3. Remove the oil pan and oil strainer.
4. Unclip control valve body wire harness.
(1) Lift up on wire harness guide and protector and disengage the retaining pins from the solenoid clamps.
5. Disconnect the (1) SST, SS2, SS3 and CCS/SS4 electrical connectors.
6. Disconnect the (2) torque converter clutch (TCC) solenoid electrical connector.
7. Disconnect the (3) electronic pressure control (EPC) solenoid electrical connector.
8. Remove the detent bolt (1) and spring (2).
9. Remove the reverse servo (2).
^ Remove the reverse servo cover and gasket. (1) Discard gasket.
Warning:
^ The piston assembly can pop out due to spring pressure when removing the cover.
10. Remove the reverse servo piston and rod.
Caution:
^ Support main control valve body.
11. Do not remove the two (gold) bolts specified.
12. Remove the 23 main control valve body (black) bolts.
Caution:
^ Support the main control valve body.
Note:
^ Use a 10 mm socket to remove the 16 M6x40mm, 4 M6x45mm, 2 M6x35 and 1 M6x30mm control valve body screws.
13. Remove the control valve body as an assembly.
14. Install the alignment pins into the transmission case.
15. Install a new gasket and separator.
Note:
^ Make sure main control to case gasket is properly aligned.
Use petroleum jelly to hold gasket in place.
16. Install the control valve body assembly.
(1) Position the assembly using the SSTs as a guide.
Note:
^ The main control valve body bolts will be tightened in later steps.
(2) Loosely install the four M6x45mm main control valve body bolts.
(3) Loosely install the two M6x35mm main control valve body bolts.
(4) Remove the SSTs.
(5) Loosely install the M6x30mm main control valve body bolt.
(6) Loosely install the sixteen M6x40mm main control valve body bolts.
(7) Tighten the main control valve body bolts in the sequence shown.
17. Install the spring and detent spring bolt.
18. Install the reverse servo piston and rod.
19. Check the reverse piston travel.
20. Install a new gasket and reverse piston cover and tighten in order shown.
21. Connect the six solenoid connectors to the solenoids.
(1) SST, SS2, SS3 and CCS/SS4 solenoids
(2) TCC solenoid
(3) EPC solenoid
Note:
^ The wiring guide snaps into place on the solenoid retainers.
22. Install the wiring loom protector and guide.
(1) Align the pins in the holes of the solenoid brackets and gently push down.
Caution:
^ Excessive pressure may break the locating pins.
23. Test the solenoid valves. See AUTOMATIC TRANSMISSION DIAGNOSIS.
24. Install new O-rings on the oil strainer.
25. Apply petroleum jelly to the O-rings.
26. Install the oil strainer.
27. Install the oil pan gasket.
28. Install the oil pan.
Note:
^ Use a crisscross sequence to tighten the transmission fluid pan bolts.
29. Install transmission heat shield (5R44E/5R55E only).
Tightening Torque 811 Nm {82112 kgf-cm, 7197 inch lbs.}
30. Lower the vehicle.
Note:
^ When the battery has been disconnected and reconnected, some abnormal drive symptoms can occur while the vehicle relearns its adaptive strategy. The customer needs to be notified that they may experience slightly different upshifts either soft or firm and this is a temporary condition and will eventually return to normal operating condition.
31. Connect the negative battery cable.
32. Fill transmission to the proper fluid level.
Note:
^ Use equivalent.
33. Drive vehicle and check shift points, shift schedule and shift shock; see AUTOMATIC TRANSMISSION PRELIMINARY INSPECTION.