It should be around your mainfold or throttle body, or just follow your top hose that goes to your radiator.
On the 2000 Firebird 3800 V6, the PCV valve is under the MAP sensor. It is on the top of the engine on the upper plenum.
The Thermostat is on the top of the engine in the location where the radiator hose fastens to the engine. Disconnect the hose and there should be two bolts holding the thermostat cover. Be careful not to over tighten the bolts when you reinstall the new one. The thermostat is actually inside.
3800 series 2 3.8 liter 231 cubic inches
My 1996 firebird v6 has the 3800 series II engine in it which produces 144 KW (196 PS)
it is built into the timing chain cover driven by the crankshaft
Depends on the type of engine, but in 3800 type, remove the plastic hood (the one that bears the number: 3800) and the thermostat housing should be on the right side. Follow the upper radiator hose, it is connected to it. On the thermostat housing, you will also find the air bleed valve of the engine.
right above the oil filter
Driver's side front of engine in a plastic housing
the thermostat is located in the housing where the top radiator hose enters the engine. Note: there is also a brass screw on the top of the housing, this is to bleed the air from the cooling system when you replace the thermostat (or do other cooling system repairs)
195 degrees, OE You can also get a 180 from any auto parts store.
Its the bleeder screw, its used to let air pockets out the coolant system.
At the engine end of the upper rad hose, When replacing it make shure the spring goes toward the engine.