Heres what I do.
Never open draincock. They break.
Pull off lower hose, don't wear your good sneakers.
Disconnect the (in) heater hose and shove the garden hose in it. Blast away. Do the other side too toward the motor. Or shove it into the lower hose and repeat several times.
Connect hoses refill. Have your front end raised, hill whatever. After I dump a bit into the rad. I squeeze the lower trying to bleed out the air. Run car for a while and squeeze again.<while its off.
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Frank
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