On a 3.4 the thermostat is on the far right side while standing in front of the vehicle, below the intake. You will need to remove the exhaust crossover and some coolant tubing from the top of the engine to get to it. Hope this helps...
Show me the picture of it
It is located at the engine end of the top radiator hose.
On radiator
in the oil pan
The thermostat is located in the housing where the upper radiator hose connects to the engine.Remove the 2 bolts and remove the thermostat.
The 2000-2005 Chevrolet Impala only came with a 3.4 and 3.8 V6 (6 cylinder) engines. Are you sure that you don't have a Malibu instead? at the emd of the upper rad hose you will find the thermostat housing. Take the 2 bolts out and remove it. When reinstalling it make sure the spring on the thermostat goes toward the engine.
on the trans shift linkage
orfice is located under brake booster
Follow the upper radiator hose back to the engine, it is connected to the thermostat housing on the engine. The thermostat is located under the thermostat housing.
The thermostat is located on the engine of a 6.0 vortex 2000 Chevrolet Silverado 2500. The thermostat can be found by following the upper radiator hose directly to the thermostat.
on the water pump
2000 chevy impala sterio wireing color codes