Control Valve Body Assembly Disassemble

Caution

Take care when removing line pressure regulator valve. The pressure regulator cushion spring and valve spring have a tendency to shoot-out, resulting in potential injury.

Important

The valvebody should only be disassembled if directed by the diagnostic charts or if the transaxle is being overhauled. Care must be taken when removing valvebody valves as these valves are not serviced separately. Whenever the valvebody is disassembled, new spacer plate gaskets must be installed.

1. Remove the solenoid cover-to-valvebody bolts and remove the solenoid cover.
2. Lift the solenoid connector plate off the solenoid valve pins using care not to damage the connector plate.

Important

Note the position of the solenoid valves before removing.

3. Remove the solenoid valves by using a twisting motion.

Important

Note the ball check valve positions when taking the 2 halves apart.

4. Remove the bolt retaining the 2 halves of the valvebody.
5. Remove the detent arm on the upper valvebody before removing the line pressure regulator valve.
6. Remove the valves from the upper and lower valvebody halves.
• Valve stuck or sticking in bore
• Torn or split gasket
• Irregular gasket surfaces on machined face of valve body
• Cracked housing in or around fluid passages
• Spacer plate damaged warped, scored, holes elongated
• Valve or housing bore scored
• Broken or collapsed springs
• Stripped bolt holes
• O-rings damaged, on valves
• Valve assemblies incorrectly installed, valve installed in wrong order, valve installed in wrong direction, valve installed in wrong bore
• Solenoid inoperative
• Poor connection at connector plate
7. The valvebody must be replaced if the valves cannot be freed up by cleaning, or if the valves or housing are damaged. If there is no apparent damage to the valves or housing, then it should be cleaned and reassembled. Make sure the valves move freely in their respective bores after cleaning and reassembly. Under no circumstances should you attempt to debur valves. Also, never use emery cloth or crocus cloth to polish or repair a valve or housing bore. The abrasive material on cloths will damage surface finish of the valves and the valvebody.