GM Service Manual Online
For 1990-2009 cars only

Condition

Possible Cause

Fluid pressure High or Low

    • Fluid pump internal leak
    • Fluid pump drive and driven gears worn or damaged
    • Fluid pump cover seal rings cut or damaged
    • Fluid pump body or cover casting porous or damaged
    • TV cable link loose or disconnected
    • TV cable out of adjustment, binding or damaged
    • Valve body spacer plate or gaskets improper position or damaged
    • Check balls omitted or improper position
    • Manual valve binding or sticking
    • Manual valve link disconnected
    • Primary regulator valve binding or sticking
    • Case internal leak in forward clutch fluid circuit
    • Case internal leak in direct clutch fluid circuit
    • Case fluid passages blocked or restricted