As you are facing the engine looking under the hood, it is on the right side, under the throttle body, inside the thermostat housing. It (the thermostat housing) is a cast metal tube with a thick rubber hose running to it.
In a removable housing at the engine end of the upper radiator hose
It is normally where the upper radiator hose meets the engine block.
Under the thermostat
Follow the top radiator hose down to the water outlet on the engine. It is in the water outlet.
Where upper rad hose meets engine, there should be some kind of gooseneck-under there.
thermostat
just follow the top radiator hose to the engine and where it clamps on you will find the thermostat, 2 bolts takes the housing off and the thermostat is under it.
The thermostat on a 1999 Chevy Monte Carlo with a 3.1 is located just below the throttle body. It is covered by the top radiator hose attached at that location.
On a 2005 Chevy Monte Carlo with a 3.4-liter engine, the thermostat is located near the engine's intake manifold, specifically at the junction of the upper radiator hose and the engine block. To access it, you'll need to remove the upper radiator hose and the thermostat housing, which is typically held in place by bolts. Make sure to allow the engine to cool before attempting to replace the thermostat to avoid burns from hot coolant.
In engine compartment
The crankshaft position sensor for the 1995 Monte Carlo is located on the front of the engine. It is just to the right of where the crankshaft comes out of the engine.
No. One of the two bolts that hold the thermostat housing to the engine is a challenge.