Should be in a removable housing at the engine end of the upper radiator hose
It varies by engine.
in the dash panel
Engine end of upper radiator hose
On the 3.3L V6 it is under the radiator cap.
The 1993 Oldsmobile Cutlass Sierra thermostat is located on the front of the engine. You can follow the water supply line from the radiator to the thermostat housing.
It is quite easy to change the thermostat in your 1990 Cutlass. Remove the thermostat housing retaining bolts. Remove the thermostat from the housing. Reverse the process to install the new thermostat.
Yes, you do.
follow the top radiator hose where it goes back to the egine
Look in the removable housing at the engine end of the upper radiator hose
I do not think there is one. I belive its fuel injected. I have a 88 and its fule injected.
i used this document for my 93 ciera. amazingly easy to follow. http://www.installdr.com/InstallDocs/GM/PDF/460009.pdf
where is the knock sensor located on 93 cutlass ciera