i mazda has been over heating the highway and have changed the thermostat and water pump and radiator cap everyone tells me to completely flush the cooling system. well i bought a flush kit from autozone and it tells me to cut a hose and insert the T connector but i do not know what hose from the firewall i should be cutting and inserting it into! there are several hoses that come out from the firewall and they are a bit confusing. if someone can please give me some direction i would be very greatful!
If you get one of those kits from an auto parts store and follow the directions it will do a great job. They sell a cleaner that you add to your coolant that will work most of the buildup loose. They do not just clean the heater core. It will clean the entire motor water circuit. But you must follow the instructions. I have one in every vehicle I own and use them every year. There are two heater hoses from the water pump. You may need a repair manual to figure out which one you need. It won't work as well if you put it in the wron hose. Most of them are between 1/2 and 3/4 in dia. Hope this gets you heading in the right direction. Any other questions contact me...... Good luck.
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