If a water pump is working rite, can you look in the radiator and see water sercalating? Or how can I find out cause my 1997 GMC truck vortek is over heating.and can't find any leaks and I've already
Allready did what? Common failures are, thermostat, corroded radiator, corroded fins on the water pump, blown headgaskets. You can't really see the circulation a sit is a cross flow radiator and even attempting to do so with it running is dangerous and could led to severe burns.