'02 Mazda 626 LX 2.5L V6. Overheating - need advice - have repair manual so can fix myself
I have a '02 Mazda 626 LX with the 2.5L V6. I had a overheating issue basically a year ago to the date, ended up being my luck both the thermostat and waterpump failed within a day of each other, as a result both got replaced and never had a issue again in till a day ago. It started dumping all antifreeze it had through the overflow canister and have a loud but dull whine like something rubbing but all belts good. No leaks around water pump or thermostats housing. System flushed and replace in march (did myself). Could either of those really fail again after only a year? Or could I have a blockage somehow and how to check?

