GM Service Manual Online
For 1990-2009 cars only

Checks

Action

Manual valve (202)

Inspect for wear, sticking or binding. Replace the manual valve (202). Refer to Control Valve Body Assembly Disassemble .

Control solenoid valve assembly (201)

Inspect for contamination with debris. Replace or flush the control solenoid valve assembly (201). Refer to Control Valve Body Assembly Disassemble .

Primary limit valve train

Inspect for:

    • Worn, sticking, binding or damaged valve (314) or spring (313)
    • Damaged valve spring seat (306)

Refer to Control Valve Body Assembly Disassemble .

Variable ratio control valve lever assembly (317)

Inspect for wear, sticking or binding. Replace the variable ratio control valve lever assembly (317). Refer to Control Valve Body Assembly Disassemble .

Variable drive pulley follower (95)

Inspect for wear, binding or damage. Replace the case cover assembly (97). Refer to Case Cover Assembly Assemble .

Variable drive pulley follower spring (96)

Inspect for wear, sticking or damage. Replace the variable drive pulley follower spring (96). Refer to Case Cover Assembly Assemble .