Control Valve Body Assembly Assemble

Important:  Dirty solvent can deposit sediment that could damage the transmission.

1. Using clean solvent, thoroughly clean the control valve body assembly, valves, springs, and all other components.
2. Using compressed air, dry all components.
3. Inspect the valve body casting for the following conditions:
   • Porosity
   • Cracks
   • Damaged machined surfaces
   • Chips or debris
   • Interconnected passages
   • Damaged sealing surfaces
   Fig 1: Inspecting Valve Body Casting

   Courtesy of GENERAL MOTORS CORP.
4. During assembly, inspect the control valve body components for the following:
   • Worn or damaged valves
   • Broken, missing or damaged springs
   • Damaged bore plugs, spring seats or retainers
5. Inspect the control solenoid valve locator pin in the control valve body assembly for damage. Replace the pin if necessary.
6. Install the clutch boost valve into the control valve body assembly.
7. Install the clutch boost valve spring.
8. Install the control solenoid valve locator pin.
   Fig 2: Installing Clutch Boost Valve & Components

   Courtesy of GENERAL MOTORS CORP.
9. Install the spring for the TCC regulator apply valve.
10. Install the TCC regulator valve.
11. Install a NEW bore plug - O-ring - seal on the bore plug for the TCC regulator valve.
12. Install the bore plug for the TCC regulator valve.
13. Install the bore plug retainer for the TCC regulator valve.
    Fig 3: Installing TCC Regulator Apply Valve & Components

    Courtesy of GENERAL MOTORS CORP.
14. Install the spring for the variable ratio control valve.
15. Install the variable ratio control valve lever assembly.
    Fig 4: Installing Variable Ratio Control Valve & Spring

    Courtesy of GENERAL MOTORS CORP.
16. Install the line 1 pressure regulator valve.
17. Install the line 1 pressure regulator valve spring.
18. Install a NEW bore plug - O-ring - seal on the bore plug for the line 1 pressure regulator valve.
19. Install the bore plug for the line 1 pressure regulator valve.
20. Install the bore plug retainer for the line 1 pressure regulator valve.
    Fig 5: Installing Line 1 Pressure Regulator & Components

    Courtesy of GENERAL MOTORS CORP.
21. Install the forward and reverse clutch valve.
22. Install the spring for the forward and reverse clutch valve.
23. Install a NEW bore plug - O-ring - seal on the bore plug for the forward and reverse clutch valve.
24. Install the bore plug for the forward and reverse clutch valve.
25. Install the bore plug retainer for the forward and reverse clutch valve.
    Fig 6: Installing Forward/Reverse Clutch Valve & Components

    Courtesy of GENERAL MOTORS CORP.
26. Install the TCC control valve.
27. Install the TCC control valve spring.
28. Install the spring seat for the TCC control valve.
    Fig 7: Installing TCC Control Valve & Components

    Courtesy of GENERAL MOTORS CORP.
29. Install the line limit valve.
30. Install the line limit valve spring.
31. Install the spring seat for the line limit valve.
    Fig 8: Installing Line Limit Valve & Components

    Courtesy of GENERAL MOTORS CORP.
32. Install the actuator feed limit valve.
33. Install the spring for the actuator feed limit valve.
34. Install the spring seat for the actuator feed limit valve.
    Fig 9: Installing Actuator Feed Limit Valve & Components

    Courtesy of GENERAL MOTORS CORP.
35. Install the primary limit valve.
36. Install the primary limit valve spring.
37. Install the spring seat for the primary limit valve.
    Fig 10: Installing Primary Limit Valve & Components

    Courtesy of GENERAL MOTORS CORP.
38. Install the line 2 pressure regulator valve.
39. Install the line 2 pressure regulator valve spring.
40. Install a NEW bore plug - O-ring - seal on the bore plug for the line 2 pressure regulator valve.
41. Install the bore plug for the line 2 pressure regulator valve.
42. Install the bore plug retainer for the line 2 pressure regulator valve.
    Fig 11: Installing Line 2 Pressure Regulator Valve & Components

    Courtesy of GENERAL MOTORS CORP.
43. Install the 3 ball check valves into the valve body assembly.
    Fig 12: Installing Ball Check Valves Into Valve Body Assembly

    Courtesy of GENERAL MOTORS CORP.
44. Install a NEW fluid pump pressure screen assembly (203) on the spacer plate assembly.
45. Install a NEW spacer plate assembly (204).

    Important:  Note the orientation of the variable ratio control valve lever assembly into the ratio control motor.

    • 1 - correct location
    • 2 - incorrect location
46. Install the control solenoid valve assembly (201) on the valve body assembly (207).
47. Install the wiring connector hole seal (200) for the control valve body cover.
48. Install the manual valve (202) in the control solenoid valve assembly.
    Fig 13: Installing Spacer Plate Assembly, Control Solenoid Valve Assembly & Components Onto Valve Body Assembly

    Courtesy of GENERAL MOTORS CORP.