GM Service Manual Online
For 1990-2009 cars only

Fluid Foaming

Checks

Action

Fluid

    • Degraded fluid
    • Contaminated (Antifreeze)
    • The transmission is overfilled

Cooler Lines

Plugged

Transmission Oil Filter (33)

Clogged or cracked

Filter Seal (32)

Leaking

Engine

Overheated

Vehicle

Overloaded