GM Service Manual Online
For 1990-2009 cars only

Checks

Cause

Oil Level

Incorrect level

TV Cable

Misadjusted, unhooked, bound, or broken (22)

Manual Linkage (701-704)

Misadjusted

Oil Pressure

Check for causes of high or low oil pressure

Intermediate Servo (128-137)

    • The Piston to case oil seal is damaged (132)
    • The servo piston is damaged
    • The servo bore in the case is damaged (15)

Accumulator Exhaust Check Valve (125, 126)

Not seating in the case

Spacer Plate (20)

    • The direct clutch feed orifice is plugged or restricted
    • The spacer plate or the gaskets are leaking, damaged, or incorrectly installed (19, 20)
    • Incorrect spacer plate (20)

Checkball #5 (16)

Not seating or missing

Case Cover (401)

    • Porosity is in the direct clutch case cover passage
    • Case cover gaskets are incorrect (25, 416)
    • The driven sprocket support passages are interconnected, leaking, or restricted (602)
    • The driven sprocket support oil seal rings are damaged or are missing (604)
    • The sleeve is loose or is out of position (601)

Direct Clutch (608-617)

    • A leaking checkball (609)
    • A damaged checkball capsule (610)
    • Damaged or missing seals (612-614)
    • A cracked or damaged housing or piston (610, 615)
    • A missing or incorrect apply ring (616)
    • The wrong number of clutch plates (618)