CHEVROLET ENGINE RUNS HOT

Trammission Wont Go In Any Gears Until It Warms Up Than It Runs Fine What Could Be Causing This Its A 1996 Chevy Lumina Ls With A 3.4 Liter...

I Replaced The Coolant System Parts That Were Bad; The Water Pump, Radiator, Thermostat, Reservoir Cap, Temperature Coolant Sensor, And...

I Flushed The Cooling System Twice But It Is Still Running Hot?