If this happened immediately after changing the thermostat, then the most likely problem is the thermostat was installed backwards.
The spring side of the thermostat faces the engine. It's the spring that is reacting to the coolant temperature and driving the valve to open/close.
When the thermostat cannot open, that prevents any coolant from ever getting to the heater core. Thus, you shiver a lot!
Pop it out, flip it over and you should be all sorts of warm and cozy.
See "Related Questions" below for more
mercury sable
There is a thermostat on all cars.
where is the thermostat at on a 2000 mercury mystique
To fix the heat in the 2000 Sable, check the coolant level first. Make sure that the engine is not heating, if it is then the thermostat or water pump could be bad. These are the most common causes of heat being out.
A 2000 Mercury Sable might have a vibration at low speeds after changing the transmission fluid because of a lack of fluid or leaking fluid. Check the transmission case for leakage and check the fluid level before driving again.
The 2000 Mercury Sable starter can be found on the right hand side of the engine. The starter will be near the back of the engine.
on the steer wheel
The 2000 Mercury Sable starter will have three retaining bolts. There will be two cable retaining nuts on the front of the starter.
On a 2000 Mercury sable : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
torque specs 2000 mercury sable 3.0 12V rod bolts
In a 2000 Mercury Sable : The thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
no it will not