i just replaced my radiator and it is still overheating whats wrong. on 1995 Cadillac Seville SLS

it is not leaking from the radiator but but it is still saying that the engine is overheating....only when driving for a period of times this happens

Asked by for the 1995 Cadillac Seville SLS
well did you replace the thermostat and check to see if radiator hoses are ok? hoses can collapse if worn causing over heating.also your temperature sending unit might be bad.