This is Scotty's method, not mine. I do not own these directions, do not sue me lol.
how to flush coolant.
remove the t stat, put the t stat housing back on, take the upper hoseoff the radiator, then push it down to the ground to a bucket or let it fly.
get your garden hoseout, put it in the rad turn it on, then fire up the car, let it run till clear water pumpsout the top hose.
then turn the hose off, run the car till no more water comes out the upper hose. then turn it off.
put your t stat back in, with new gasket, the upper hoseback on.
now take 1 gallon of full strength green antifreeze, not the 50/50 crap. ( parts store cheap green is fine to use) dump the whole gallon in the radiator, fire up the car, fill the rad with hose water till its full. top as needed till its ready to be bled of air. it will burp and take coolant as the water in the block warms up the t stat opens up for a few seconds till cold coolant hits it and it shuts again.
now to bleed the air out, let it idle rad cap off till the fans turn on, (when the fans are on the temp is over 195 deg, the t stat is wide open) then open the bleeder screwon top the t stat housing a few turns till a steady stream of coolant comes out the hole, shut the screw, top off the rad. cap it.
done.
