GM Service Manual Online
For 1990-2009 cars only

Second Gear Starts Harsh, or Shudder in Reverse

Checks

Cause

Control Valve Assembly

Stuck 1-2 shift valve

Second Clutch Housing and Drum assembly

    â€¢ Scored drum surface
    â€¢ Hot spots caused by band slipping

Reverse Band Assembly

Burned fiber material

#5 Checkball

Missing or mislocated checkball

Servo Cushion Spring

Damaged or wrong spring