It is just beneath the lower radiator hose.
how to change a radiator in 2001 Monte Carlo
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.
There is no such thing as a 2008 Monte Carlo, so the answer would be no.
chevy 2003 monti carlo how to replace a cooling fan assembly
Water pump removal chevy monte carlo 3.8
No
On a 2001 Monte Carlo it is located on the radiator just below the radiator cap.
Yes
Should be in a removable housing at the engine end of the upper radiator hose
under the bottem rad. hose
Should be on the drivers side, bottom far left.