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Home >> Chevrolet >> 2005 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Trouble Shooting >> Troubleshooting >> Transmission Overheats

Transmission Overheats

Transmission Overheats

Checks Cause
TCC Circuit Blockage during apply or release
TCC Valve Spring (224) The spring is broken.
Pump Cover (206) Cross channel leakage
Pressure Regulator Valve (231) The valve is stuck in a high demand position.
Oil Cooler The cooler or the cooler lines are blocked.
Gasket (6) The gasket is damaged.
Retainer Pin (211) The pin is broken.
Turbine Shaft O-ring (2) The O-ring is damaged.
Turbine Shaft Seals (503) The seals are damaged.
Stator Shaft Bushing (233) The bushing is worn or damaged.
Oil Transfer Hole Cup Plug The plug is leaking.
Fluid The fluid level is low.
Radiator Air flow is restricted.