Where is the heater core located in 1986ford Taurus?
It is lo cated behind the dash. There is no short cut or fast way to replace it. The dash has to come out to access the heater box and replace the core. So the steps in replacing the heater core are to evacuate the freon out of the AC system, disconnect the heater hoses, disconnect the AC lines and AC drier from the evap core fittings, remove the dash, remove the entire AC/heater box, open the top of the case and replace the core. Reassembly is in the reverse order as disassembly. Recharge the AC system, fill the cooling system with new coolant, and burp the air form the cooling system.
Do you mean that your heater core is leaking coolant ? That would mean that the heater core is clogged. The heater core is like a mini-rad, if it is clogged it leaks. Answer No, there is not an overflow tube/outlet on the heater core. See "Related Questions" below for more about Taurus / Sable heating/cooling systems.
if you have already replaced the thermostat ,try replacing the heating core . it's located under the passanger side dash . There are a number of other things to investigate before going to the major under-taking of the heater core. See "Related Questions" below for a comprehensive trouble-shooting guide to Taurus/Sable heating problems.
If the windows of your 1996 Mercury Sable fog up with antifreeze moisture but the heat still works is this a bad heater core or poor drainage or something else?
this may not be a project you want too tackle yourself. your heater core is located in the heater box which is located under the dash. to removeyou will need to drain antifreeze remove heater hoses(2) located on the firewall in the engine compartment.remove the dashboard to access the heater box.remove cover for heater core .replce and install everything in reverse order.this is a 4 or 5 hour job for a mechanic.
The water is flowing through the heater core at full speed, all the time. Temperatures are adjusted by moving a 'door' inside the ductwork changing the amount of air that passes over the hot heater core. The various "Related Questions" below provide tons of information on the Taurus/Sable heating systems, and a round-up of causes & repairs for common problems.
There is not a valve that regulates the flow of coolant through the heater core. The Taurus/Sables never had one like that. Coolant flows through the heater core at all times, no matter the temperature setting. Temperature adjustments are made by controlling how much air flows through the always hot heater core, by the opening and closing of a damper-type door inside the ductwork. This temperature blend door is controlled by: 1986-about 1995 - A…