It can be the heating block, which only needs to be replaced before you start getting warm air again.
There is no cable like the older cars. Its all done electronicly now. These cars do have a problem with the heater blend door going bad. Replacement parts from the dealer only is recomended, or to have the dealer repair the problem.
I assume your car heater is blowing cold air, when the heater is on. It seems that, you have air on your coolant. that air pockets blocks the cooland to travel through your heater. it may be a sign of a bigger problem such as blown head gasket in the old cars, such acura legend
heater core
NO! THE HEATER CORE IS YOUR CARS HEAT SOURCE YOU CAN BYPASS BUT IS NOT A GOOD IDEAL IN WINTER!
the heater core could be clogged with rust or stop leak . or u don't have enough hot water flow through the heater core . under the hood on most cars on the heater hose is a off/ on valve to control the flow of hot water...anti-freeze...to the heater core.....R
Cars do not come with a block heater normally, it is something you have to have installed aftermarket
Yes. The coolant carries the engine heat to the heater core. Without coolant the heater core does not get warm.
Heater fan and cooling fan.
Yes they have a heater/defroster.
On most makes of cars this problem is fixed by replacing a blower motor resister and not the switch.
The most common problem with heat on these cars is a broken blend door. The dealership will want a fortune to repair it but there is a do it yourself alternative kit out there called the Heater Treater. Check them out on google and ebay and go to the site for full diagnosis and info. hope this helps!
If "heater coil" is just another term for "Heater core", then yes, most all cars have them.See "Related Questions" below for tons of information about Taurus / Sable heater cores.