For 1990-2009 cars

Checks | Causes
--- | ---
Oil Pump (4) |

• | Damaged vanes

• | Missing slide spring

• | Oil pump screen assembly plugged or damaged

• | Oil pump rotor guide omitted or misassembled

• | Oil pump rotor cracked or broken

• | Porosity in fluid pump

• | Oil pump surfaces not flat

• | Excessive oil pump rotor clearance

Forward Sprag Clutch Assembly (642) |

• | Damaged sprag

• | Worn or pitted inner race

Input (662) and Reaction (681) Carrier | Damaged or worn gears