got it,

my concern is (and I need some more input from someone who expereinced heater core plugged up problems)

-does the garden hose flush with the T connector method work or are heater cores very difficult to clean out?

-what is causing that gushing sound, is it the heater core being partially blocked????

97 Montero SR w/Mitsu Adj Shocks & Rear Diff Lock ARB Front Diff Lock 4.9 Ring/Pinion 3.15 transfer box 43:1 crawl ratio 2" suspen lift 2" body lift 2" Gas Tank Lift 35x12.5 MTRs 15x10 Wheels Rock Sliderz ARB front bumper w/12k winch Custom rear bumper