GM Service Manual Online
For 1990-2009 cars only

Checks

Cause

Oil Level

High or Low

TV Cable

Misadjusted, unhooked, bound, or broken

Oil Pressure

See causes of high or low oil pressure

Intermediate Servo (128-137)

    • Seals are cut, damaged, or leaking (128, 132, 134)
    • The piston is damaged (133)
    • The servo bore in the case is damaged (15)
    • The apply pin is too long or too short (129)
    • The servo orifice bleed cup plug is missing
    • A leak exists between the servo apply pin and the case (129-137)

Intermediate Band (606)

The servo band apply pin is binding (129)

TV Link (22)

Link is bent or is wrong

Control Valve Assembly (21)

    • The TV plunger is binding (367)
    • The shift TV valve is binding (308)
    • The 1-2 accumulator valve is binding

1-2 Accumulator (419-422)

    • Binding 1-2 accumulator piston (421)
    • Broken 1-2 accumulator spring (419)
    • The piston seal or groove is damaged (420)
    • The 1-2 accumulator bore is damaged (401)

Spacer Plate (20)

    • The spacer plate or the gasket is incorrect (19, 20)
    • The gasket is incorrectly installed (19)

Case (15)

The second oil passage is leaking

Case Cover (401)

The second oil passage is leaking