GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

Case Assembly (51)

    • Inspect for cracked or broken Case (51)
    • Inspect for stripped or sheared splines
    • Inspect for missing Lube Orifice Plug
    • Inspect for binding Manual Shift Detent Lever Assembly (511)
    • Inspect for missing Manual Shift Shaft Pin (510)
    • Inspect for interference or binding Park Pawl Actuator Assembly (509)
    • Inspect for disengaged or broken 1-2-3-4 Clutch Piston Spring Retainer (459)

Torque Converter

    • Inspect for stripped or sheared splines on Turbine Shaft
    • Inspect for missing bolts from Torque Converter to Flywheel

35R/456 Housing Assembly

    • Inspect for damaged or broken Input Shaft Thrust Bearing Assembly (32)
    • Inspect for stripped, sheared or loose splines on the Input Shaft to the 3-5 Reverse/4-5-6 Clutch Housing (422)

Oil Pump Assembly

    • Inspect for fluid leaks / improper fluid level
    • Inspect for disengaged, worn, binding or failed Drive Sprocket (216), Driven Sprocket (215) or Drive Link (217)
    • Inspect for leaking Fluid Outlet Seal Assembly (57)
    • Inspect for damaged or worn Drive (219, 220) and Driven Sprocket Thrust Washers (214)
    • Inspect for loose or missing Oil Pump Bolts (204)
    • Inspect for stripped or sheared splines on the Oil Pump Shaft or Driven Sprocket (215)
    • Inspect for damaged, clogged or improperly installed Oil Filter Assembly (201)
    • Inspect for damaged or leaking Oil Filter Neck Seal (202)

Low & Reverse Clutch Assembly (455)

Inspect for stripped or sheared splines to the Reaction Carrier (467)

Input Carrier Assembly (470)

    • Inspect for stripped or sheared splines to ring gear
    • Inspect for improperly installed carrier pinion gear pins