Q: Overheating - 2001 Cadillac Seville

asked by on October 23, 2016

My car overheating I replace thermostat radiator fuel pump flush the system bleed it works fine on ideal heater works but as soon as i drive it over heats highway only and there no leaks anywhere and coolant is disappearing in hour if driving but no leaks oil good nothing out of exhaust and no bubbles from radiator and car drives good at night when its cold temp stays at regular temp?

My car has 174000 miles.
My car has an automatic transmission.

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