When you open the hood look down, its right in front of you.........snakebite!!!!!!
It screws into the top of the intake manifold in the front passenger side corner. directly opposite of the thermostat. Its no bigger than your thumb and has two wires going into it.
Location of coolant temperature sensor on a 2003 Mercury Grand Marquis?Read more: Location_of_coolant_temperature_sensor_on_a_2003_Mercury_Grand_Marquis
The thermostat is located on the front of the engine under the elbow at the end of the radiator hose
headlight relay location on a 2004 mercury grand marquis
it is right across from my thermostat and i have a 2000 mercury cougur it srews in and out.
Follow your upper radiator hose back to the thermostat housing(sometimes called a water outlet adapter), which is held on with two bolts. Remove the two bolts and nside the housing is the thermostat and a O-ring seal.
Because the plastic housing is cracked. That is what happened to mine.
Check the engine end of the upper radiator hose
PossibleThe thermostat is located on the top of the engine - just follow the top radiator hose to the top of the engine. When you remove that hose you'll the thermostat. Do you have the Automatic Climate Control?
left side of dash
the thermostat on most mercury's is located just above the muffler. must remove exhaust pipe and muffler to reach thermostat. good luck.
The temperature sensor is on the right hand side of you digital A/C controler it is the little round vent holes on the side of the a/c controls
On a 1999 Mercury Grand Marquis : The Original Equipment engine cooling thermostat would have been ( around 192 * Fahrenheit )