Automatic Transmission Overheating

Checks	Causes
Fluid Pump Assembly	Pressure regulator valve stuck Pressure regulator valve spring Line boost valve spring Line boost valve or bushing stuck, damaged or incorrectly assembled Pressure relief ball not seated or damaged Pressure relief ball spring Fluid pump screen assembly plugged or damaged Fluid pump rotor guide omitted or misassembled Fluid pump rotor cracked or broken Porosity in fluid pump Fluid pump surfaces not flat Excessive fluid pump rotor clearance
Pressure Control Solenoid Assembly	Contaminated O-Rings cut or damaged Electrical connection
Inspect for active transmission DTCs	Transmission DTC default action active