[bigbadtrucker]

taurus has a bad problem of the heater core getting clogged with rust and debris, you can flush the core but the question you should ask is where did the stuff come from. most likely the water pump, at 100,000 miles or so the fins on the water pump rust off and reduce circulation of coolamt and the rust and debris clogs the heater core. i have worked on alot of these cars and that is usually the problem. so if you change your heater core you should also put a water pump in because it will save you alot off headache and more than likely your engine for just alittle more work