Tools Required

J 33163  Valve Tray Set. See Special Tools .

Fig 1: TFP Switch Retaining Bolts
Courtesy of GENERAL MOTORS CORP.
1. Position the control valve assembly on the work table so that the main valve body assembly is facing up.
2. Remove 6 bolts (1) retaining the transmission fluid pressure (TFP) switch to the main valve body.
Fig 2: TFP Switch And Reverse Signal Pipe
Courtesy of GENERAL MOTORS CORP.
3. Remove the TFP switch (1) from the main valve body (3).
4. Remove 2 bolts retaining the reverse signal pipe (2) to the main valve body (3).
5. Remove the reverse signal pipe (2) from the main valve body (3).
Fig 3: Modulated Main Pressure Solenoid Valve Body
Courtesy of GENERAL MOTORS CORP.
6. Remove 2 bolts (1) retaining the modulated main pressure solenoid valve body to the main valve body (3).
IMPORTANT: To help prevent confusing parts on assembly, use J 33163  to store the removed control valve assembly valves, springs, and stops. See Special Tools .
7. Remove the modulated main pressure solenoid valve body (2) and six speed tube.
8. Remove the modulated main pressure (MAIN MOD) solenoid retainer (5) from the bottom of the valve body.
9. Remove the MAIN MOD solenoid (3).
10. Remove 2 O-rings (4) from the MAIN MOD solenoid (3).
Fig 4: TCC PCS And Components
Courtesy of GENERAL MOTORS CORP.
11. Remove 1 bolt (1) retaining the torque converter clutch pressure control solenoid (TCC PCS) bracket to the main valve body.
12. Remove the TCC PCS bracket (2).
13. Remove the TCC PCS (7), valve (4), and spring (3).
14. Remove the O-rings (5, 6) from the TCC PCS (7).
Fig 5: Shift Solenoid Assembly
Courtesy of GENERAL MOTORS CORP.
15. Remove the shift solenoid 2 (SS2) retainer (1).
16. Remove the SS2 (4).
17. Remove the O-rings (2, 3) from the SS2 (4).
Fig 6: Shift Solenoid Assembly
Courtesy of GENERAL MOTORS CORP.
18. Remove the shift solenoid 3 (SS3) retainer (1).
19. Remove the SS3 (4).
20. Remove the O-rings (2, 3) from SS3 (4).
Fig 7: View Of Pressure Control Valve Retaining Bracket Retaining Bolts
Courtesy of GENERAL MOTORS CORP.
21. Remove 3 bolts (1) that retain the PCS1 and PCS2 retaining bracket (2) to the main valve body (3).
Fig 8: Pressure Control Solenoid Components
Courtesy of GENERAL MOTORS CORP.
22. Remove the PCS1 and PCS2 retaining bracket (1), 2 accumulator springs (2), and 2 accumulator plugs (3).
23. Remove the PCS1 (15), valve (13), spring (12), valve (11), and spring (10).
24. Remove the PCS2 (9), valve (7), valve (6), and spring (5).
25. Remove the O-ring (14) from the PCS1 (15).
26. Remove the O-ring (8) from the PCS2 (9).
Fig 9: Shift Solenoid
Courtesy of GENERAL MOTORS CORP.
27. Position the control valve body on the work table so that the shift valve body (1) is facing up.
28. Remove the shift solenoid 1 (SS1) retainer (2).
29. Remove the SS1 (5).
30. Remove the O-rings (3, 4) from SS1 (5).
Fig 10: Shift Valve Body Bolts
Courtesy of GENERAL MOTORS CORP.
NOTE: DO NOT damage the solenoids when turning over the control valve assembly.
31. Position the control valve assembly on the work table so that the main valve body is facing up.

    Remove 11 bolts (1) retaining the shift valve body and the main valve body together.

32. Position the control valve body assembly on the work table so that the main valve body is on edge, sideways.
33. Reinstall 4 bolts (1) so that the bolts are partially threaded into the shift valve body and protrude from the main valve body.
34. Gently tap the bolts until the assembly separates.
Fig 11: Separating Shift Valve Body Assembly, Separator Plate, And Main Valve Body Assembly
Courtesy of GENERAL MOTORS CORP.
35. Position the control valve assembly on the work table so that the shift valve body (1) is facing up.
36. Separate the shift valve body assembly (1), the separator plate (2), and the main valve body assembly (4).