auto keeps over heating after making several repairs
and replacing parts on 2002 GMC Envoy

new thermostat, water hoses, flushed radiator, new alternator, pully, cleaned catilic convertor

Asked by for the 2002 GMC Envoy
Make sure that the cooling fan engages when vehicle is running hot.
The fan runs with the engine constantly would it still engag or how does that wk