GM Service Manual Online
For 1990-2009 cars only

1-2 Shift Shudder

Checks

Cause

Second Clutch

    • Worn fiber plates
    • Leaking check valve ball
    • Cut seal
    • Damaged steel plates
    • Mispositioned snap ring

Driven Sprocket Support

    • Damaged seal rings
    • Refer to Causes of Low Oil Pressure