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Home >> Chevrolet >> 2005 >> Chevy Express H1500, Van Passenger >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Trouble Shooting) >> Troubleshooting >> Inadequate Lubrication

Inadequate Lubrication

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Inadequate Lubrication

Checks Cause
Pressure Regulator Valve (231) Valve is stuck in a high demand position.
Pump Body (206) Cross channel leakage
Gasket (6) Damaged
Oil Transfer Hole Cup Plug Plug is leaking