2006 Nisson truck frontier 2 wheel Dr

I flush radiator just be doing it I used
regular Red Devil radiator flush I didn't
take the antifreeze out I just put it in
and run it for day so with it in any I let it
out flushed out good with water then it
start bubbleing out all my violent out
over flow so changed stat then bought
new over flow cap thought letting run
out the heatblows hot air the temp
hand stays normal until you know it
gets low on water I ain't let it run hot
with me I always turn it off for me but it
keeps on every time I fill it up