my 1992 camry resently stated over heating on 1992 Toyota Camry

i just resently had a tune up done then i had been adding water to the car i bought coolent and i had my boyfriend add the coolent he drain the host to let the water out.. so 2 dayss later it started over heating i change the thermostat i had a new water pump put in last year with a new time belt i do have a new radiator i wana try havent change it yet some ppl sed it can be the head gaskets but thers no water in the oil and car runs fine please help

Asked by for the 1992 Toyota Camry
2 answers
Radiator fans working?
start lookin at your air flow. could be clogged cat.converters. the new radiator couldn't hurt either.