GM Service Manual Online
For 1990-2009 cars only

Torque Converter Clutch Shudder

Checks

Causes

Miscellaneous

    â€¢ Low oil presure
    â€¢ Engine not tuned properly
    â€¢ Contaminated transmission oil

Oil Filter (72)

    â€¢ Crack in filter body
    â€¢ Flash restricting filter neck
    â€¢ O-ring seal (71) cut or damaged

Torque Converter Assembly (1)

    â€¢ Internal damage
    â€¢ Broken weld or missing weight

Oil Pump Assembly (4)

    â€¢ Converter clutch valve (224) stuck
    â€¢ Restricted oil passage

Input Housing and Shaft Assembly (621)

    â€¢ Turbin shaft O-ring (618) cut or damaged
    â€¢ Turbin shaft retainer and ball assembly (617) restricted or damaged