GM Service Manual Online
For 1990-2009 cars only

Transmission Seized

Checks

Action

Cooler Circuit Lines

Blocked or leaking

Cooler Fittings

Blocked or leaking

Spacer Plate/Gaskets

Holes missing, off location

Scavenger Pipe

    • Damaged, clogged
    • Poor seal at pipe

Control Valve Bodies

Loose, broken or missing bolts

Transmission Fluid Filter

Sitting in side cover

Filter Seal

Cut damaged neck seal

Left and Right Scavenge Screens

Clogged or not seated in case