GM Service Manual Online
For 1990-2009 cars only

No Reverse

Checks

Cause

Oil Pressure

Refer to Causes of High or Low Pressure

Reverse Servo

    • Misassembled servo
    • Damaged piston or seal
    • Missing cushion spring or retainers

Oil Pump Assembly

Refer to No Drive in Drive Range

Drive Link Assembly

Refer to No Drive in Drive Range

Reverse Band

    • Burned or damaged reverse band
    • Mislocated band apply pin

Input Clutch

Refer to No Drive in Drive Range

1-2 Shift Solenoid valve or TCC Solenoid valve

Malfunctioned or walked out solenoid

Reverse Reaction Drum

Damaged splines

Input Sprag

Refer to No Drive in Drive Range

Input and Reaction Carriers

Refer to No Drive in Drive Range