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)

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

Accumulator Exhaust Check Valve (125, 126)

Not seating in the case

Spacer Plate (20)

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

Checkball #5 (16)

Not seating or missing

Case Cover (401)

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

Direct Clutch (608-617)

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